Salmonella weltevreden: a sero-type of increasing public health importance in India.

Infection due to Salmonalla weltevreden in man in India was quite uncommon until 1970, constituting less than 4% of total human salmonellosis. The incidence of infection increase considerably since that year and in 1972 this serotype constituted 29.1% of total human and 22.4% of both human and and animal salmonellosis. This serotype ranks second among 47 and 83 Salmonella serotypes isolated from sewage and other water sources during 1958-1973. The public health importance of this serotypes is discussed.