Vietnam has culled three times as many pigs as last year to curb ASF outbreaks
Vietnam has had to slaughter three times as many pigs as last year to curb outbreaks of African swine fever, according to information collected by the Reuters agency. The Vietnamese government has declared that the evolution of the latest outbreaks is complicated and that they threaten to spread on a large scale.
During 2021 Vietnam has had to slaughter 230,000 pigs, and the government has indicated that the ASF has spread to 57 of the country's cities and provinces, up to a total of 2,275 areas.
African swine fever began to be detected in Vietnam in February 2019, leading to the culling of around 20% of pigs in that country. The decline in cases in 2020 and early 2021 brought relief to the Vietnamese pig herd, but now outbreaks have skyrocketed again, and the government has had to take steps to prevent the spread of the disease.
Scenario for testing vaccines
Vietnam was precisely the scene where tests were recently carried out on a vaccine against ASF that is being developed by the United States Department of Agriculture (ARS), and whose second study has given positive results.
The results, published on September 28, indicate that pigs administered the candidate vaccine not only survived but mostly remained free of clinical signs of disease when experimentally inoculated with an ASF virus strain. that has been circulating in Vietnam. The work follows previous results, published in April 2020, which indicated that the candidate vaccine was effective against a strain first identified in 2007 in Georgia.
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