Talking about Pravin Patel, a resident of Atlanta in the US who died of Influenza A (H1NI) at the Ahmedabad civil hospital Sunday, Azad said that he was educated and must have had a wide social circle. Chances are that he could have infected others, the minister said.

Patel's wife is in critical condition after being detected with swine flu. The couple came to India last week.

Azad also updated Prime Minister Manmohan Singh Sunday over the swine flu situation.

'We are doing what has not been done in other countries (where the flu is spreading). We are screening people at airports, seaports and segregating them. Treatment is being given to all infected as well as those in contact or who travelled with the person,' Azad said.

India has witnessed four swine flu deaths. Over 780 people have been infected with the virus since the first case was reported May 16.