VIET NAM Epidemics of dengue fever and Japanese encephalitis occur in most countries except the western perimeter, where there is Crimean-Congo haemorrhagic fever instead. Leishmaniasis and filariasis are reported from China, filariasis mainly from the south. There are foci of plague in India, China, Mongolia, Myanmar and Viet Nam. There is a vaccine for hepatitis B. Outbreaks of meningococcal meningitis occur in India, Nepal and Mongolia. A vaccine is available.
Polio continues to be reported from rural areas and vaccine is available.
HIV is a major problem. London Health Sciences Centre .