The outbreak of japanese encephalitis continue in Uttar Pradesh. More than 200 cases has been diagnosed at the Medical College in Gorakhpur and 960 cases has been admitted so far in 2009 in Uttar Pradesh. At the same time Japanese encephalitis has been diagnosed in 164 patients in Assam province. In this outbreak the infection has mainly been found in adults over 15 years, which is unusual as the infection usually are seen in children. The government of Assam has decided to vaccinate the entire population against Japanese encephalitis.