Bengaluru, March 5 (IANS): The Karnataka Health and Family Welfare Department is observing 461 people under home quarantine even as no positive coronavirus case has been reported from the state, an official said on Thursday.

"We are observing 461 people for Coronavirus symptoms at their residences, however, no positive case has emerged from Karnataka," said state Health Department's Joint Director, Communicable Diseases, Prakash Kumar.

The five people under isolated observation at Rajiv Gandhi Institute of Chest Diseases continue to be so on Thursday as well.

As many as 273 samples sent from the state for coronavirus testing reported negative.

In Karnataka, 68,717 passengers have been thermal-screened for the virus until now at Kempegowda International Airport in the city and Mangluru International Airport.

Another 5,103 passengers were also checked for the virus at Karwar and Mangluru seaports.

On Thursday, 16 people completed the mandatory 28-day observation period while a total of 225 people also underwent the same.

Karnataka is screening all international passengers and the state health department met the private sector hospitals to take stock of recent developments.