- A new type of influenza virus appears and spreads rapidly in northern and central Vietnam. Pathogenic viruses have strong, highly lethal.
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| Bird flu is complicated in North, Central |
The new virus (named is virus group C) relatively close to group A, but with a higher virulence. Nguyen Tung, deputy director of the Central Veterinary Diagnostic Center said the center is preparing experiments to test the vaccine's protection with this branch. viruses appear between July and August spreads rapidly wide from the North Central. According to epidemiological experts, the new virus is detected is likely to cause bird flu continues to spread in the future..
