Vietnam: H5N1 Virus Clade 2.3.2 Appears, Vaccine Almost No Effect

For avian influenza, according to the latest experimental results of the Veterinary Department, is clade 2.3.2 virus branch danger has been present in our country. This new branch virus currently circulating across much of North, Central Coast and Highlands alternative to the old 2.3.4 branch virus. With this branch of avian influenza virus, after the virulent intensity, had 100% mortality within 3 days and 20% of the ducks died within 7 days. So can see, this new branch is toxic to the virus and less toxic chicken with duck, while the older branch of avian influenza virus can kill 60 to 70% duck.

Especially this new branch virus has rapidly transformed and developed into two tributaries, with major differences in antigen. Tributary of a widely circulated in almost every province and two tributaries only detected in two provinces of Nam Dinh and Thai Binh.

More worryingly, the experimental results of the Veterinary Department of the validity of the H5N1 vaccine-Re5 shows the effect of protection against new virus is very low branches, almost no effect. The bird flu vaccine used in our country mainly imports, which, mostly from China. To prevent avian influenza virus clade 2.3.2 This new branch, at present, China is studying the H5N1 vaccine-Re6, but so far no experimental results.

Currently, the development of livestock and poultry is increasing to meet market demand. However, the type of dangerous diseases such as blue ear pig, bird flu ... always threatens to recur at the facility, the farm at any time. Solutions to disease prevention for livestock and poultry breeding has as biosecurity, vaccination vaccines, nutritious foods to enhance resistance of livestock ... The key is vigilance and initiative of the animal in coping with the disease to livestock development stable and sustainable. /.