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African swine fever in Asia
Lab trials of the Navet-ASFVac vaccine revealed it Recently, Vietnam authorised the commercial sale protected at least 80 percent of pigs for six months. of Navet-ASFVac. Photo: VTV
Progress with ASF vaccine
PROGRESS in the de- velopment of a vaccine against African swine fever has been made in Vietnam and the Philip- pines over recent weeks.
trials this year, AVAC Vietnam Co and Dabaco Group each have a vac- cine that is expected to receive a license this year.
Recently, Vietnam au- thorised the commercial sale of Navet-ASFVac.
ASF-infected materials. Preliminary results were expected at the end of June, according to trial organisers, the Depart- ment of Agriculture and
As African swine fever continues its relentless spread across Europe, Af- rica and particularly Asia, there is a growing need for a safe and effective vaccine against the dis- ease.
Vietnam is among the Asian countries in greatest need for addi- tional measures to control ASF.
Development of Navet- A S F V a c – t h e wo r l d’ s first vaccine against ASF – began in early 2022 by Navetco National Veteri- nary JSC in collaboration with US experts.
Robina Corp. AttheendofMay,itwas
This would help to pro- tect domestic and wild pigs, which are the main hosts of the ASF virus.
In early 2019, the virus was first detected in the country, which spread to the nation’s 63 provinces and cities.
According to Vietnam Plus, lab trials of this vac- cine revealed it protected at least 80 percent of pigs for six months.
reported that the nation’s Department of Science and Technology and a US Embassy scientist were exploring opportunities to collaborate over ASF diagnostics.
It poses no direct threat to human health.
More than six million pigs were culled and costs have topped an estimated $A1.88 million.
In the US, an ASF vac- cine candidate recently passed important safety tests as part of its regula- tory progress.
Aims of this coopera- tion were to improve de- tection kits and make them cheaper.
However, the devas- tating losses it brings can badly impact the owners’ livelihoods, disrupt supply chains and raise the price of pork. Vietnam
Though infrequently re- ported, ASF continues to cause significant losses in Vietnamese pig herds.
The Philippines
According to PNA, a mobile lab was deployed in Mindanao to support efforts to control the spreadofASF.
It was reported recently that not one but two ASF vaccines were scheduled to be authorised in Vi- etnam by the end of 2022.
This is according to the latest update on the ASF situation in Asia from the United Nations’ Food and Agriculture Organisation.
In May, the Philippine News Agency reported that the vaccine was moving on to the next phase of testing – vac- cinated pigs would be moved to pens containing
The rising cost of pork is the main driver for the efforts to control ASF in the Philippines, according to one DOST official.
After successful farm
For the first three months of 2022, 562 out- breaks were confirmed in 42 of the country’s prov- inces.
The Philippines re- ported recently that testing of an ASF vac- cine there had also shown positive results.
Speeding up testing of suspected cases should lead to fewer animals culled.
* from P16
Of the 226 parcels seized,
Shanxi province. December 2021 was the
spread of the ASF virus around the country in in- fected pigs.
28 had tested positive for the ASF virus.
last of the closing dates for these disease series, after single outbreaks in Hainan and Hebei.
Finally, one outbreak in Jiangsu province in April 2020 affected 17 pigs at a premises described as “other.” ASFdetectedinHong Kong wild pig
While inspections of mailed parcels and im- ported goods were stepped up, Taiwan’s authorities reminded travellers and citizens that bringing pig products into the territory was illegal and significant fines would be imposed. ASF situation in China widely resolved
Of all the outbreaks, 14 were detected on prem- isesdescribedasfarmsin WOAH notifications.
In Hong Kong, a new out- break series has begun in wild boar.
Recently, China’s veteri- nary agency declared to WOAH that 15 earlier ASF outbreak series had been “resolved.”
While there were four such outbreaks in the Xin- jiang Uyghur region, seven more provinces each re- ported only one or two out- breaks.
Among the pig farms put under close monitoring, one was within 3km of the infected carcass.
Covering 14 provinces and special regions were a total of 39 confirmed outbreaks.
Also testing positive for the ASF virus over this period were nine backyard herds in five provinces.
Between September 2021 and February, a total of nine wild pigs tested posi- tive for the ASF virus at three other locations in the Hong Kong area.
Directly impacted were almost 55,000 pigs.
Fifteen were detected at highway checkpoints and quarantine facilities in six provinces and regions.
Of these now-closed outbreaks, the first was in October 2018 in
These had been set up by authorities to prevent the
Individual affected herds ranged in size from 165 to almost 10,000 swine.
According to the official WOA H notification, one sick boar reported by the public was found dead in the Sai Kung area at the end of May.
African swine fever in Asia to mid-May 2022.
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Australian Pork Newspaper, July 2022 – Page 17
