Slenkdal Koors in Namibie (Suide)

[Francois Marais]

Nou ja manne, da is dit nou hier by ons ook, die belangrikste is egter vir alle voornemende jagters, GEEN vleis mag landuit nie, ook nie vervoer word in die Hardap en Karas streke nie.

Hier is die amptelik kennisgewing deur Veartseny vrygestel. Het dit net n WORD dokument gemaak en gecopy, pdf file wou nie copy na die forums se bladsy.



REPUBLIC OF NAMIBIA


MINISTRY OF AGRICULTURE, WATER AND FORESTRY


Tel: (264) 61 2087513 Directorate of Veterinary Services
Fax: (264) 61 2087779 Government Office Park
Private Bag 12022
AUSSPANNPLATZ
14 May 2010
Press Release

Outbreak of Rift Valley Fever in Hardap and Karas Regions

Following the outbreak of Rift Valley Fever in the Republic of South Africa last year, the state
veterinary services of Namibia has been on high alert. As a result the first cases have been
detected and confirmed at two farms in the Hardap Region on 12 May 2010. In addition, there is
one suspicious outbreak under investigation in the Karas Region. Rift Valley fever is an insect
borne viral disease of cattle, sheep and goats which can also affect Humans.

As a consequence, the Ministry of Agriculture, Water and Forestry imposes, with immediate
effect, the suspension of all movement of cattle, sheep and goats from, into within and through
the two regions of Karas and Hardap for one week. Therefore all permits that were issued
involving the 2 regions have been suspended. The slaughter of cattle, sheep and goats at
export abattoirs and the sale of animals at auctions have also been suspended. Noordoewer
and Ariamsvlei border posts are now closed to livestock including fresh or frozen meat for own
consumption.

These measures have been imposed in order to allow time to ascertain the extent of the
outbreak and to open negotiations with trading partners.

Meanwhile intensified surveillance activities are underway in the Karas and Hardap Region and
state veterinarians elsewhere in the country have been put on high alert. Farmers are therefore
urged to report animals (cattle, sheep and goats) that exhibit suspicious signs (as outlined
below) to their nearest veterinary official, to assist and cooperate with veterinary officials in their
investigations. Owners of farms in high risk areas especially those close to water bodies, have

1



recently received heavy rainfall and are experiencing increased biting fly activity are urged to be
particularly vigilant.

Efforts are underway to import Rift Valley Fever vaccines and make them available to farmers
through local suppliers.

The following information is to assist farmers, livestock handlers and the public to recognize Rift
Valley Fever and protect themselves and their livestock from possible infection.

DISEASE IN ANIMALS

Signs of the disease tend to be non-specific making it difficult to recognize individual cases.
During epidemics however, the occurrence of numerous abortions and mortality in among
young animals is characteristic. Affected animals are listless, do not move or feed and may
exhibit signs of abdominal pain. Young animals may die within 36 hours of the onset of signs.
Older animals may take longer to die or show no apparent signs. Some animals regurgitate
food and may have bloody diarrhea and blood-stained mucopurulent nasal discharge. Cattle
may have yellow pigmentation of mucous membranes, salivation, stop producing milk and
increased tear production.

TRANSMISSION TO ANIMALS

Several different species of mosquito are able to act as vectors for transmission of the RVF
virus. Among animals, the RVF virus is spread primarily by the bite of infected mosquitoes,
mainly the Aedes species. There is also a potential for outbreaks and associated human
epidemics to spread to areas that were previously unaffected. This can occur when infected
animals introduce the virus into areas where vectors are present and this is of particular
concern.

TRANSMISSION TO HUMANS

?
the vast majority of human infections result from direct or indirect contact with the blood
or organs of infected animals.
?
the virus can be transmitted to humans through the handling of animal tissue during
slaughtering or butchering, assisting with animal births, conducting veterinary
procedures, or from the disposal of carcasses or fetuses.
?
certain occupational groups such as herders, farmers, slaughterhouse workers and
veterinarians are therefore at higher risk of infection.
?
there is some evidence that humans may also become infected with RVF by ingesting
the unpasteurized or uncooked milk of infected animals.
?
human infections have also resulted from the bites of infected mosquitoes, most
commonly the Aedes mosquito.
?
Transmission of RVF virus by hematophagous (blood-feeding) flies is also possible.
CLINICAL SIGNS IN HUMANS

?
feverish syndrome with sudden onset of flu-like fever,
?
muscle pain, joint pain and headache.
?
hemorrhagic fever
2



TREATMENT AND VACCINE

There is no specific treatment or effective human vaccine, so it is important to raise awareness
of risk factors and ensure people take protective measures to prevent exposure. Gloves and
other protective clothing should be worn when handling sick animals or their tissues or when
slaughtering.

PREVENTION AND CONTROL
Controlling RVF in animals

Outbreaks of RVF in animals can be prevented by a sustained programme of animal
vaccination. There are two types of vaccine available on the market: the live attenuated RVF
vaccine and the inactivated (killed) vaccine. The live attenuated vaccine should not be used in
pregnant animals as it can cause abortion and birth defects. The inactivated vaccine is suitable
for pregnant animals. The attenuated live vaccine confers long-term immunity and can be used
in non-pregnant animals.

Restricting or banning the movement of livestock may be effective in slowing the expansion of
the virus from infected to uninfected areas.

Vector control

Other ways in which to control the spread of RVF involve control of the vector and protection
against their bites.

Animal products including blood, meat and milk should be thoroughly cooked before eating.
Humans should also sleep under mosquito nets and wear long-sleeved shirts and trousers to
protect against bites.

Any persons who has recently come in contact with sick animals, organs or their body fluids and
is manifesting the aforementioned signs must seek medical attention at the nearest state
hospital or medical facility. More information on Rift Valley Fever can be obtained from your
local state veterinarian


Dr C Bamhare
Acting Chief Veterinary Officer


Mooi loop
Francois

[Francois Marais]

OK manne, hier is nog n "updated" version.


REPUBLIC of NAMIBIA


MINISTRY OF AGRICULTURE, WATER AND FORESTRY


Tel: (264) 61 2087513 Directorate of Veterinary Services
Fax: (264) 61 2087779 Government Office Park
Private Bag 12022
AUSSPANNPLATZ
14 May 2010

Press Release-Updated

Outbreak of Rift Valley Fever in Hardap and Karas Regions

Following the outbreak of Rift Valley Fever in the Republic of South Africa last year, the
state veterinary services of Namibia has been on high alert. As a result the first cases
have been detected and confirmed at two farms in the Hardap Region on 12 May 2010.
In addition, there is one suspicious outbreak under investigation in the Karas Region.
Rift Valley fever is an insect borne viral disease of cattle, sheep and goats which can
also affect Humans.

As a consequence, the Ministry of Agriculture, Water and Forestry imposes, with
immediate effect, the suspension of all movement of cattle, sheep and goats from, into
within and through the two regions of Karas and Hardap for one week. Therefore all
permits that were issued involving the 2 regions have been suspended. The slaughter of
cattle, sheep and goats at export abattoirs and the sale of animals at auctions have also
been suspended. All border posts are now closed for livestock, game animals including
fresh or frozen meat for own consumption until further notice. This will affect hunters
intending to take meat back to South Africa until a decision has been made by the
South African veterinary authorities.

These measures have been imposed in order to allow time to ascertain the extent of the
outbreak and to open negotiations with trading partners. Updates on the prevailing
situation will be given as information is received.

1



Meanwhile intensified surveillance activities are underway in the Karas and Hardap
Regions and state veterinarians elsewhere in the country have been put on high alert.
Farmers are therefore urged to report any animals (cattle, sheep and goats) that exhibit
suspicious signs (as outlined below) to their nearest veterinary official, to assist and
cooperate with veterinary officials in their investigations. Owners of farms in high risk
areas (close to water bodies, recently received heavy rainfall and experiencing
increased biting fly activity) are urged to be particularly vigilant.

Efforts are underway to import Rift Valley Fever vaccines and make them available to
farmers through local suppliers.

The following information is to assist farmers, livestock handlers and the public to
recognize Rift Valley Fever and protect themselves and their livestock from possible
infection.

DISEASE IN ANIMALS

Signs of the disease tend to be non-specific making it difficult to recognize individual
cases. During epidemics however, the occurrence of numerous abortions and mortality
in among young animals is characteristic. Affected animals are listless, do not move or
feed and may exhibit signs of abdominal pain. Young animals may die within 36 hours
of the onset of signs. Older animals may take longer to die or show no apparent signs.
Some animals regurgitate food and may have bloody diarrhea and blood-stained mucopurulent
nasal discharge. Cattle may have yellow pigmentation of mucous membranes,
salivation, stop producing milk and increased tear production.

TRANSMISSION TO ANIMALS

Several different species of mosquito are able to act as vectors for transmission of the
RVF virus. Among animals, the RVF virus is spread primarily by the bite of infected
mosquitoes, mainly the Aedes species. There is also a potential for outbreaks and
associated human epidemics to spread to areas that were previously unaffected. This
can occur when infected animals introduce the virus into areas where vectors are
present and this is of particular concern.

TRANSMISSION TO HUMANS

?
the vast majority of human infections result from direct or indirect contact with the
blood or organs of infected animals.
?
the virus can be transmitted to humans through the handling of animal tissue
during slaughtering or butchering, assisting with animal births, conducting
veterinary procedures, or from the disposal of carcasses or fetuses.
?
certain occupational groups such as herders, farmers, slaughterhouse workers
and veterinarians are therefore at higher risk of infection.
2



?
there is some evidence that humans may also become infected with RVF by
ingesting the unpasteurized or uncooked milk of infected animals.
?
human infections have also resulted from the bites of infected mosquitoes, most
commonly the Aedes mosquito.
?
Transmission of RVF virus by hematophagous (blood-feeding) flies is also
possible.
CLINICAL SIGNS IN HUMANS

?
feverish syndrome with sudden onset of flu-like fever,
?
muscle pain, joint pain and headache.
?
hemorrhagic fever
TREATMENT AND VACCINE

There is no specific treatment or effective human vaccine, so it is important to raise
awareness of risk factors and ensure people take protective measures to prevent
exposure. Gloves and other protective clothing should be worn when handling sick
animals or their tissues or when slaughtering.

PREVENTION AND CONTROL
Controlling RVF in animals

Outbreaks of RVF in animals can be prevented by a sustained programme of animal
vaccination. There are two types of vaccine available on the market: the live attenuated
RVF vaccine and the inactivated (killed) vaccine. The live attenuated vaccine should not
be used in pregnant animals as it can cause abortion and birth defects. The inactivated
vaccine is suitable for pregnant animals. The attenuated live vaccine confers long-term
immunity and can be used in non-pregnant animals.

Restricting or banning the movement of livestock may be effective in slowing the
expansion of the virus from infected to uninfected areas.

Vector control

Other ways in which to control the spread of RVF involve control of the vector and
protection against their bites.

Animal products including blood, meat and milk should be thoroughly cooked before
eating. Humans should also sleep under mosquito nets and wear long-sleeved shirts
and trousers to protect against bites.

Any persons who has recently come in contact with sick animals, organs or their body
fluids and is manifesting the aforementioned signs must seek medical attention at the

3



nearest state hospital or medical facility. More information on Rift Valley Fever can be
obtained from your local state veterinarian.


Dr C Bamhare
Acting Chief Veterinary Officer

[boeta]

Frans

Hier is ons moelikheid ook nou

Hoor Farmers is toe vi 6 maande,hulle sal dit seker nie maak nie behalwe as hulle aseransie daar teen het,sal maar sien wat gebeur,ek moes nou geslag het.

Boeta

[Christo]

Jip daar gaan my jag down in die drain  . Nou sal ek maar die forum manne moet loop kuier oppad Henties toe i.p.v. jag.

Dit kan ook net so lekker uitdraai.


Christo

[Francois Marais]

Boeta

Gelukkig het het so 3 weke terug geslag, net voor ons see-toe is. Ja, wonner wat gaan nu gebeur, ek weet nie van die 6 mnde ding nie, die persverklaring se vir n week, maar dis net om te sien wat aangaan. Daar sal seker nog persverklarings wees, ek sal julle op hoogte probeer hou.

Christo

Jy weet mos jy is altyd welkom

Mooi loop
Francois

[DSBW]

Francois

Dankie vir die moeite met die vars inligting, dit help baie! Kom ons hoop dit is ge?soleerde gevalle en die ding is gou verby!

Groete

Dawie

[Francois Marais]

Dawie

Ja my maat, kom ons hoop ma so, baie boere wat n ekstra geldjie maak met die jagtery, en as n man nie mag bemark nie, hoop ma die banke sal verstaan.

Mooi loop
Francois

[namhunt]

Francois

Ek en 'n paar vriende het die naweek in Bethanie se wereld loop jag.
Vrydag moes ons ophou skiet en die vleis op die plaas los.
Dit is nie lekker om geld uit te haal en met niks by die huis te kom nie. Ons het darm nie vir die bokke betaal nie.
Ander manne kon 'n man seker laat betaal het.

Groete
Daan

[Freddie101]

Daan
Dit is hartseer. Ek raak self nou lus vir n biltonkie. Lyk my die manne is streng daar oor die koors. Distrikte hier by ons wat op lys is se wol word nie deur china gekoop nie. Is dit die staat wat dit gestop het.
Groete Freddie

[namhunt]

Fredie

Ja dit is hartseer.
Ek hoop net nie die noorde word ook geraak nie. Dan gaan dit maar swaar gaan met die biltong die jaar.

Groete
Daan

[frinam]

Freddie, dit is die Min van Landbou, Veeartseny afd., wat die dekreet uitgevaardig het. Hoop maar net die storie is van korte duur, anders gaan die biltongjag seisoen hierdie jaar 'n riller raak. Groete- Frinam

[boeta]

Frinam

My bankrekening gaan ook n riller raak

Boeta

[DSBW]

Boeta

Jy's gelukkig, myne is 'n riller, weet nie wat hy gaan raak as hierdie ding aanhou nie, maar ek is seker dit sal nie aanhou nie, sal teen Maandag volgende week blykbaar weet.

Groete

Dawie

[Louis102]

Manne

Nie dat ek dit ooit nodig gehad het nie, maar hierdie klink nou na 'n gawe verskoning om meer in die jagveld (jakkalse) uit te kom.  Die res is mos nou "on hold"?

Kan egter nie glo nie, net vir 'n naweek weg dan gebeur sulke dinge.  En ek moet bemark!  My kontantvloei het 'n helse knou gekry daar by Safari & Outdoor in Stellenbosch.  Toe ou Hendrik-hulle my kredietkaart deursit, toe dim die Kaapse Metropool se ligte, so erg was dit!  Maar, ek is darem bly dat ek eers na ek by S&O was, gehoor het van die krisis, anders sou ek maar met 'n swaar gewete gekoop het.

Intussen bid ons maar vir ryp en wysheid.

Louis

[Freek]

Louis102 ja ek los maar my vrou by die huis as ek inkopies doen... Hulle s? mos plastiek is geduldig, en ek het om getoets maar ek sal aanraai dat julle nie so v?r moet gaan om een krediet kaart met 'n ander af te betaal nie - die afdraende raak skierlik styl hoor.

Terug op ernstige noot, sterkte daar met die slenkdal koors ding - ons vertrou dat dit spoedig sal eindig. Skiet maar die frustrasies op die jakkalse uit, dit is nogal goeie "anger management..."

[Francois Marais]

Louis

Klink nie sooo erg nie, Farmer Meat Market Mariental slag weer van more af, klink my die uitslae van die lab af is nog nie uit nie, maar daar word gereken dat dit BLOUTONG was en nie slenkdal koors nie.

Sal maar sien as die nuwe persverklaring uitkom, praat nu maar die storie soos in vandag se blou bollie.

18.05.2010
Koors hoog oor slenkdal
DIE vermeende uitbreking van slenkdalkoors in die Mata-Mataomgewing is steeds die onderwerp van ?n uitgebreide ondersoek deur die owerhede, met die boer op wie se plaas die eerste gevalle vermoedelik voorgekom het diep in vertwyfeling of dit werklik di? gevreesde siekte is.

Indien uitspraak oor die uitbreking nie binne dae gelewer word nie, kan die sluiting van die grense vir veral die kleinveeprodusent miljoene Namibiese dollar se verliese beteken.

Die boer wie se naam nie genoem kan word nie, het gister bevestig dat sewe van sy skape onderweg na die slagpale op Mariental gevrek het, maar hy twyfel of dit slenkdalkoors is. Hy meen dit kan eerder wees dat die skape wat in ?n vrag van 250 op een vragmotor gelaai was, mekaar vrekgetrap het.

?n Verdere tien skape is die volgende dag in kwarantyn geplaas omdat hulle kortasem was en is later geslag om vir slenkdalkoors te toets.

?Die veearts by die abattoir het my gevra om my diere terug te neem, wat ek toe gedoen het. Aanvanklik het hy vir my ges? dat die skape wat gevrek het, bloutong het en later het hy ges? dit is slenkdalkoors, maar ondersoeke op my plaas het minstens twee veeartse al laat opmerk dat dit nie slenkdalkoors is nie.

?Geen ander vee op die plaas is siek nie, geen aborsies is opgemerk nie, my skape is nie by oop waters nie en ons kry geen aanduiding dat die diagnose reg is nie. Teen gistermiddag sou die veearts terugvoering gekry het van die laboratorium in Windhoek, maar ons het nog niks gehoor nie,? het hy ges?.

Volgens die boer het hy in 1985 toe die vorige uitbreking van slenkdalkoors in die land voorgekom het, ook geen sterftes as gevolg daarvan ervaar nie.

Die vermeende uitbreking van die siekte het die land se veeprodusente in rep en roer met veral kleinveeprodusente wat asem ophou om te hoor wanneer uitvoere en slag weer kan plaasvind.

Dr. Milton Maseke, adjunkdirekteur in die direktoraat veeartsenydienste van die Ministerie van Landbou, Water en Bosbou, het gister ges? dat die beperkings op vervoer en die slag van bokke, beeste en skape in die Karas- en Hardap-streek vir een week steeds geld. Dit volg nadat ?n noodkomitee bestaande uit alle rolspelers in die vleisbedryf wat verlede jaar in die lewe geroep is, gister in Windhoek vergader het om te besluit oor die onmiddellike plan wat gevolg gaan word.

?Ons is baie benoud en wag angstig op die uitslae van die ondersoeke wat veeartseny gedoen het,? het mnr. Raimar von Hase, voorsitter van die Namibiese Kamer van Handel en Nywerheid en ook die Karakoeltelersgenootskap gister by navraag ges?.

?As die beperkinge vir langer as ?n week in werking is, gaan dit rampspoedige gevolge h? vir ?n bedryf wat reeds op sy knie? is. Benewens die paar lammers wat Brukkaros Meat Processors na die Europese Unie uitvoer, word al ons lammers na Suid-Afrika bemark,? het hy ges?.

Hy het verwys na die sowat 7 500 skape wat volgens Brukkaros Meat Processors in di? week by hulle abattoir geslag sou word, en het ges? dat dit vir die produsente ?n verlies van meer as N$3.75 miljoen beteken.

Die ander bedryf wat erg geraak word weens die verbod op uitvoere, is die biltongjagbedryf. Talle jagters kom in die wintermaande uit veral Suid-Afrika om hier te kom jag.

Geen definitiewe syfers is beskikbaar oor die hoeveelheid wildvleis wat jaarliks die land op hierdie wyse verlaat nie, maar me. Diana van Schalkwyk van Food Chain Solutions en voorsitter van die Namibiese Abattoirvereniging, het gister aangedui dat sowat 10 000 karkasse die land jaarliks deur middel van formele markte verlaat.

Die syfer kan verdubbel wanneer die informele jagbedryf bygereken word wat dus daartoe aanleiding gee dat sowat 5 000 karkasse per maand in die vier maande wat die jagseisoen oop is, van die veld gehaal word.

Sou hierdie karkasse almal springbokkarkasse wees wat gemiddeld 22 kg uitslag en wat teen ?n gemiddelde prys van N$16/ kg gekoop word, is die verliese vir ?n maand waartydens die grense gesluit kan wees, sowat N$1.76 miljoen.

?n Leser van Republikein wat in die Dordabis-omgewing gejag het, het uit Somerset-Wes per brief laat weet dat hy alleen N$15 000 se verliese gehad het tydens ?n onlangse jagtog toe hy nie die vleis oor die landsgrense kon neem nie. Benewens die verliese wat die boer op die verkoop van die vleis ly, is daar ook verliese ten opsigte van verblyf en vervoer wat deur hom gedra moet word.

Sowat 22 500 skape word per week in Namibi? geslag. Die gemiddelde massa van hierdie skape is 18 kg en die gemiddelde prys oor al die grade heen was in Maart vanjaar N$19.71. Dit verteenwoordig ?n verlies van N$7.98 miljoen per week vir skaapprodusente.

Die direktoraat veeartsenydienste wag op terugvoering van hul Suid-Afrikaanse eweknie om te bepaal hoe lank die uitvoer van vleis na hierdie buurland gestaak moet word. Uitvoere na die Europese Unie gaan steeds ongehinderd voort. Verbruikers kan gerus wees dat die vleis wat hulle in slaghuise en supermarkte koop veilig is vir menslike gebruik.

Wanneer vleis teen 2?C geberg word en tydens die gaarmaakproses word die virus wat slenkdalkoors by mense laat voorkom, onskadelik gemaak.

Sanet de Waal

Mooi loop
Francois

[Christo]

Ek kry maar solank my ou permittjie net ingeval dit bollie is . FM as die ding wegwaai sal jy maar moet plan maak vir jagplek die jaar nog, anders skiet ek en die seuns al wat leef en beef op Louis se plaas. Hoor juis hy kry bietjie droog, dit sal help as daar minder oor is.

ps: hy weet nog nie van die plan nie.

   

[Francois Marais]

Christo

Is reg, praat ma net as die sakie ernstig raak, dan maak ons plan.

Mooi loop
Francois

[Louis102]

....anders skiet ek en die seuns al wat leef en beef op Louis se plaas....

Christo, s? as jy 'n ding wil re?l.  Vermoed jy sal dalk net vir Oom Riempies moet saambring, 400m plus skote mag dalk nodig wees!  Die maer bokke hardloop nogal lekker hier by my, geen oortollige vetjies om hulle terug te hou nie!  Dis nou as Francois se opsie om een of ander rede nie realiseer nie.

[Christo]

Is daar al enige beter nuus vir ons

Hier in my omgewing is dit al waaroor almal praat. Met groot hartseer natuurlik.

[Francois Marais]

Christo



Dit is n brief wat die hoof veearts op die 17/18 uitgereik het, slegs genoemde produkte mag uitgaan, ons mag steeds nie in die gebiede oes nie, maar daar mag vleis vanaf die groot slagpales deur die gebiede vervoer word, bv FMM se vleis bestellings wat na Luderitz en Keetmanshoop gaan.

Hoop die brief is leesbaar, dis n ge-scan-de dokument wat as n foto file aangestuur is, ek kon nie net die contents copy nie.

Vandag se koerant, Die Republiekein, het dit te se gehad. Twee stories oral en niemand weet rerig wat aangaan nie, tipies AFRIKA.

http://www.republikein.com.na/politiek-en-nasionale/grens-dalk-weer-oop.107166.php

20.05.2010
Grens dalk weer oop
TERWYL Namibiese kleinveeprodusente nog op hete kole wag om te hoor of die verbod op die vervoer en slag van diere uit die Karas- en Hardap-streek m?re opgehef word, het die Suid-Afrikaanse owerhede ges? dat di? buurland gereed is om sy grense weer oop te maak vir uitvoere. Suid-Afrika het in Februarie vanjaar sy grense gesluit vir die uitvoer van vleis en wol nadat slenkdalkoors in die Vrystaat uitgebreek en na ander provinsies versprei het.

In haar begrotingstoespraak het minister Tina Joemat-Pettersson aan die Nasionale Raad vir Provinsies ges? dat die Suid-Afrikaanse regering met Namibi? en China in gesprek is om Suid- Afrika se multimiljard rand vleisen woluitvoere te heropen.

Me. Joemat-Pettersson het die uitbreking van slenkdalkoors en ander siektes aan die klimaatsveranderinge toegeskryf. Sy s? die uitbreking het druk geplaas op navorsingsinstellings, maar dat dit tot gevolg gehad het dat entstof nie teen die siekte ontwikkel is.

Sanet de Waal

Sal kyk of ek dalk nog erens iets kry, ma belowe om julle op hoogte te probeer hou.

Mooi loop
Francois

[Francois Marais]

Ook n berig in vandag se Republiekein, bietjie meer oor die agtergrond van die Slenkdal gedoente.

18.05.2010
So word slenkdalkoors voorkom en beheer

SLENKDALKOORS is ?n akute virussiekte wat hoefdiere soos skape, bokke en beeste aantas. Dit hou ook ?n ernstige gesondheidsgevaar vir die mens in.

Die naam ?slenkdalkoors? is ontleen aan die Slenkdalgebied in Kenia waar die siekte die eerste keer beskryf is.

Die virus is die eerste keer in 1930 tydens ?n epidemie onder skape in di? gebied ge?soleer. Diere word aanvanklik besmet as hulle deur die muskiete wat die virus dra, gebyt word. Hierna word die diere direk besmet omdat hulle aan geaborteerde fetusse en besmette materiaal blootgestel word.

Lammers en bokke jonger as twee weke is baie vatbaar. Hulle word baie gou siek, gewoonlik binne 24 tot 72 uur na besmetting. ?n Ho? koors word ontwikkel, hulle is lusteloos en verloor hul eetlus. Hulle toon ook tekens van abdominale pyn. Tot 95 persent van aangetaste lammers kan vrek. Skape is lusteloos, met ?n ho? koors, is traag om te loop, eet nie en gooi op. Dragtige ooie aborteer en die fetus ontbind gou.

Vrektes onder skape is so hoog as tussen 15 en 30 persent en tussen 40 en 60 persent van dragtige ooie kan aborteer. By kalwers kom ligte kliniese tekens voor en 10 tot 15 persent van die aangetaste diere vrek. By volwasse beeste is die 10 tot 40 persent van aborsies onder dragtige diere soms die enigste siektetekens.

Slenkdalkoors kom gewoonlik in die laat somer voor as dit warm is en die lugvogtigheid hoog is. Diere wat in die somer in laagliggende dele by panne, vleie en damme wei, loop die grootste risiko om die siekte te kry.

Mense word gewoonlik besmet deur regstreekse aanraking met die slenkdalkoorsvirus indien hulle nadoodse ondersoeke op besmette karkasse of geaborteerde fetusse doen of in laboratoriums met die virus werk. Dit is veral veeartse, veeboere en plaaswerkers wat die gevaar staan om besmet te word.

Wat voorkoming en beheer betref, is die volgende belangrik:

? Dit is nie prakties moontlik om die muskiete wat die Slenkdal- koorsvirus dra, uit te roei of te beheer nie. Daarom is die immunisering van beeste, bokke en skape, die enigste praktiese en werkbare beheermaatre?l. Die periodes tussen die siekte kan jare duur. Daarom ent die meeste vee-eienaars nie hul diere nie en is die oorgrote meerderheid vee in Suid-Afrika vatbaar en dit versprei baie vinnig van plaas tot plaas.

? Die lewende entstof wat deur Onderstepoort Biologiese Produkte gemaak word, kan in alle niedragtige beeste, skape en bokke gebruik word en gee goeie beskerming aan vee.

? Dragtige vee kan met die dooie entstof inge?nt word. Dit is duur en tydrowend om te produseer en het ?n raklewe van een jaar.

? Die dra van beskermende klere wanneer nadoodse ondersoeke gedoen word, is uiters belangrik.

? Melk moet gepasteuriseer word vir menslike gebruik.

? Die toepassing van goeie insektebeheer, kan moontlik bydra tot voorkoming van die siekte.

? Verskuif diere van laagliggende na ho?rliggende dele en voorkom dat dit naby vleie, damme en riviere wei waar daar baie muskiete is.

Bronne: www.agriwiki.co.za, www.af.wikipedia.org


Mooi loop
Francois

[Christo]

Ons wag maar in spanning.................................................................. 

[Francois Marais]

Almal

Vars nuus wat nu ingekom het......................

21.05.2010
Rift Valley Fever: Movement and other restrictions eased
Outbreak of Rift Valley Fever in Hardap and Karas Regions

The Directorate of Veterinary Services would like to update the farming community and the general public with regards to the latest developments concerning the Rift Valley Fever outbreak.
1. Trade in Commodities

? After trade negotiations with South African Veterinary Authorities, the Directorate of Veterinary Services wishes to announce the following export restrictions:

(i) Live susceptible ruminants including game animals

(ii) venison, beef, mutton and goat meat (including meat for own consumption) not slaughtered at abattoirs approved for export to South Africa

(iii) Raw milk
All import permits already issued for these commodities have been cancelled.

? The following products will be allowed into South Africa under a veterinary health certificate
processed by a state veterinarian in the Directorate of Veterinary Services of Namibia:

(i) Pasteurized milk

(ii) Break dried biltong, dr?e wors processed at approved export establishments

(iii) Matured meat slaughtered at South African approved abattoirs

? For own use or own consumption the following products will be allowed under veterinary health certification:

(i) Processed hides, skins, horns, bones and trophies

(ii) Break dried biltong and dro?wors with an allowance of 10 kg per passenger vehicle
2. Surveillance

Surveillance is underway in targeted high risk areas which include the following:

(i) Farms where sick, dead or aborting animals have been reported.

(ii) Farms where animal movement permits have been issued to or from affected farms.

(iii) Farms adjacent to the farms where Rift Valley Fever has been confirmed.

(iv) Farms located close to water bodies such as dams, rivers, wetlands where mosquitoes and biting fly activity is high.

Samples are being collected and sent to the laboratory whenever sick or dead animals showing signs of Rift Valley Fever are encountered. Surveillance results so far indicate that the disease is still confined to the two regions and the number of sick or dead animals is still very low indicating that this may be the early stages of an epidemic.

Follow?up investigations on 35 farms considered to be at high risk have been conducted and laboratory samples collected where suspicious cases were encountered. Samples from six farms from the Hardap region and one from Karas Region tested positive to Rift Valley Fever. Surveillance activities are ongoing.
3. Preventive Measures

3.1 Movement control

? Movements of cattle, sheep, goats, camels and game within Karas and Hardap have been eased as follows:

(i) Movements will be allowed to local and export abattoirs.

(ii) Movements from farm to farm, farm to auction and auction to farm of abattoir within the two regions are allowed.

(iii) Movement of animals from farms under restriction for RVF will be allowed 21 days after
vaccination with a live attenuated vaccine and after booster inoculation with an inactivated
vaccine, administered in accordance with manufacturer?s guidelines.

(iv) Movements of animals into Karas and Hardap are allowed however, once in the area, they will be under the same restrictions outlined above.

? Movements of cattle sheep, goats, camels and game out of Karas and Hardap have been eased as follows:

(i) Movements will be allowed to abattoirs under a red cross permit

(ii) Movements of vaccinated animals will be permitted 21 days after vaccination with a live
attenuated vaccine and after booster inoculation with an inactivated vaccine, administered
in accordance with manufacturer?s guidelines.

4.2 Vaccination

As a preventive measure, farmers are advised to vaccinate their livestock (cattle, sheep and goats) against the disease following the manufacturer?s instructions before the rain season (October) when increased mosquito activity is expected.

There are two types of vaccines: the live attenuated vaccine (Smithburn Strain), which is used in nonpregnant animals and the killed (inactivated) vaccine which can be used in pregnant and non?pregnant animals. If the live attenuated RVF vaccine is used in pregnant animals it will cause abortion or fetal abnormalities.

The main suppliers of veterinary pharmaceuticals are in the process of acquiring stocks of vaccine. However, at present the inactivated vaccine is not available on the market and will only become available in June or July 2010. Farmers are encouraged to place orders with the main suppliers as soon as possible in order to ensure vaccination of the national flocks and herds before the next rainy season.

4.3 Personal Protection

Rift Valley Fever can infect and cause illness in humans particularly those who come into close contact with sick animals, aborted fetuses, blood and other body fluids especially during handling, slaughtering, butchering and milking. It is advised to wear rubber gloves and face masks when carrying such activities where the disease is suspected to be present and to exercise stringent hygiene such as thorough washing of hands with soap and water, disinfecting contaminated clothing and equipment.

Please note that meat intended for human consumption (from healthy animals) must be chilled and matured at +2?C for a minimum period of 24 hours which will inactivate the virus if present. The disease can also be transmitted to humans by mosquitoes and biting flies.

4.4 Information Dissemination
A number of radio and television programs will be broadcast to disseminate information. For any clarification or further information, one can contact their nearest state or private veterinarian.

Members of the public and the farming community are requested to report any suspicious cases to their nearest state veterinary office.

These measures are taken to protect the livestock industry and the public against this devastating disease and the Directorate of Veterinary Services encourages everyone to cooperate.


Mooi loop
Francois

[Christo]

Dankie vir die nuus FM, nie dat dit help nie. Die spykers word net al harder in my jag se doodskis ingeslaan.

Ek kry die boere wat 'n bestaan maak uit die jagtery nogal jammer.

Christo