Also Read | Ten books from 2020 you must not missThough 1,700 plus passengers tested negative, as a matter of extra precaution, their 1,041 close contacts were traced and tested.
The returnees and their contacts were from Chennai, Thanjavur, Madurai, Nilgiris, Theni, Chengalpattu and Nagapattinam.New strain in Tamil Nadu One person in Tamil Nadu who returned from the UK between 25 November and 23 December tested positive for the new variant on Tuesday.
The infected person was isolated on arrival and is undergoing treatment. "The National Task Force has said not to change either existing equipment or existing testing protocol," Tamil Nadu Health Secretary Dr J Radhakrishnan told news agency ANI.