Indian health authorities are testing the saliva and blood samples of a 28-year-old man found with symptoms of A/H1N1 influenza virus after he arrived last weekend from the United States, reported the private Indo-Asian News Service on Sunday.

The samples have been sent to the National Institute of Communicable Diseases in New Delhi while the patient has been admitted to a hospital in Hyderabad in central India, said the report quoting hospital sources.

The man, who is a software professor, arrived in Hyderabad on Saturday from San Francisco via Dubai.

He was the second man to be found with suspected A/H1N1 influenza flu symptoms in the central Indian city, after a 26-year-old man, who had landed in Hyderabad from Texas last Tuesday, was tested negative of influenza A/H1N1 on Saturday.

On Saturday, three other people who were suspected to have been infected with A/H1N1 influenza virus and quarantined in New Delhi were tested negative, said health officials.

(Xinhua News Agency May 3, 2009)