Chinese veterinary officials on Thursday announced the development of a brand
new diagnostic reagent and vaccine, which they said made them confident of
ending an outbreak of a deadly pig disease in the south of the country.
The Ministry of Agriculture said in a statement that a mass immunization of
pigs would be completed as early as possible because imminent high summer
temperatures and humidity could help spread the outbreak of blue ear disease.
The disease -- officially named porcine reproductive and respiratory syndrome
-- was not infectious for humans and is listed by the government as one of the
61 class II animal epidemic diseases that must be brought under immediate
The vaccine invented by the Chinese Center of Animal Disease Control and
Prevention and the China Institute of Veterinary Drug Control would see its
first use in the epidemic-stricken Guangdong province.
"We will speed up the production and distribution of vaccines and
simultaneously tighten quality supervision," said the ministry statement.
The ministry required veterinary departments to stay on high alert for the
disease and immediately report suspect cases.
"Once the virus mutates, it will become more pathogenic and more difficult to
cure," it warned.
A major problem was the poor breeding conditions as most farmers tend to
raise their pigs in open places and pens are poorly equipped with anti-epidemic
The frequent transportation of live pigs might also facilitate the spread of
the disease, it said.
A nationwide survey would be carried out to ensure preventive measures and
emergency action plans were implemented in counties and townships.
Chinese epidemiologists said the disease arrived in China in the mid 1990s
and the latest outbreak in Silao Town of Yunfu City was caused by a deadly
mutation of the virus.
More than 300 pigs died after they stopped eating, became feverish and
started hemorrhaging at the end of April.
According to Yunfu government, the infected pigs were raised by individual
rural households rather than on industrial pig farms and were not exported to
Hong Kong or overseas markets.
The government said it had delivered two reports to the World Organization
for Animal Health and the UN Food and Agriculture