11.   The virus list also includes several forms of encephalitis viruses, smallpox and yellow fever.

12.   According to the Centers of Disease Control in Atlanta, infection by the Japanese encephalitis virus can only occur through a mosquito bite.

13.   An African encephalitis virus that killed seven New Yorkers last year has returned, some borne by Asian mosquitoes believed to have arrived in shipments of used tires.

14.   But the Nipah, a new form of encephalitis virus, has spread quickly among humans.

15.   But there was no confirmation that all the reported deaths were from the Japanese encephalitis virus.

16.   Flood waters are receding, leaving behind damp breeding grounds for mosquitoes, the pest that often transmits the Japanese encephalitis virus to humans.

17.   Government health experts initially said it was the Japanese encephalitis virus, but later another strain that appeared related to the Hendra virus was found to be killing people.

18.   Government health experts initially said the outbreak was due to the Japanese encephalitis virus.

19.   Health authorities have also launched a drive to spray chemicals to kill mosquitoes that carry the Japanese encephalitis virus.

20.   Health officials are investigating whether the Japanese encephalitis virus is present in the tourist island of Bali, which has just been through a cholera scare.