Chennai, May 17 (IANS): As many as 639 more persons tested positive for coronavirus in Tamil Nadu even as 634 Covid-19 patients were cured and discharged, the state Health Department said on Sunday.

Four Covid-19 patients died, taking the total death toll to 78 in the state.

In a statement issued here, the Health Department said 639 persons tested positive for coronavirus taking to total tally to 11,224.

The new infections include 81 persons who had come to Tamil Nadu from Maharashtra (73 persons), Karnataka (2), Andhra Pradesh (1), Rajasthan (2) and Telangana (3).

The number of Covid-19 patients who were cured and discharged on Sunday was 634 and the total is 4,172.

According to the government, a total of 13,081 samples were tested taking to total over 3.26 lakh till date. Testing of 477 samples are under process.

State capital Chennai continued to see the highest number of infections at 480 taking the total tally to 6,750.

The number of infected children in the age group 0-12 went up to 663.

The total number of active cases in Tamil Nadu stands at 6,971.