He had the visa and an air ticket. He seems to have managed to sneak out of the district to catch the flight,' an official told IANS.

Gopal, who studies in Boston (Massachusetts), arrived in Jamshedpur July 23 and complained of sore throat and high fever. His throat swab samples were sent to Kolkata for test, and were confirmed positive for the disease. He insisted that he should not be quarantined but instead allowed to stay in his house.

Till now, the samples of four people suspected to be suffering from swine flu have been sent for tests. While one is from Bokaro, the other three are from Jamshedpur.