"We are ascertaining their infection trail," said Bihar Principal Secretary (Health), Sanjay Kumar.
Meanwhile, state health secretary Lokesh Kumar Singh said on Saturday that a total of 2,526 people showed symptoms of COVID-19 in the door-to-door survey conducted in many districts.
"The Bihar government is conducting a door-to-door survey in many districts. In this survey, 71,25,000 people have been tested, in which 2,526 people showed symptoms of COVID-19. Out of these, the samples of 1,890 people have been sent for testing," an official statement quoted Singh as saying.
( With inputs from ANI )