The Thrissur district in the state of Kerala has reported 82 cases of malaria this year. Malaria was thought to be eradicated several years ago from this state; as a result these latest figures are troubling health authorities.
Whilst there has been no indigenous spread reported so far in the district, the likelihood cannot be ruled out.
Many of those infected were migrant workers from the northern Indian states of Orissa, Bihar, and West Bengal. Makeshift sheds near worksites that serve as accommodation offer little protection against attack by mosquito vectors. The Health Department is conducting screening tests for malaria among the migrant labour population as soon as they arrive at their work sites, collecting blood smears and administering drugs as soon as symptoms are found.
The monsoon season has also seen an increase in viral fever cases in this same district with 133 confirmed Influenza A (H1N1) cases.

http://www.hindu.com/2010/07/12/stories/2010071253110300.htm

A number of patients suffering from suspected Japanese encephalitis have been admitted to various hospitals in the state of Manipur. Blood samples collected from patients developing symptoms similar to the disease were sent to a regional medical research centre but unofficial figures suggest 24 out of 27 blood samples collected have been found to be positive.

Pending confirmation, measures are being put in place to control the spread of this mosquito-borne illness via fogging and distributing mosquito nets impregnated with insecticide.

Japanese encephalitis is mosquito-borne disease that occurs during the wet seasons in agricultural areas of Asia and the Western Pacific. It affects the central nervous system and can cause severe complications and death.

http://topnews.us/content/223839-major-encephalitis-outbreak-assam