Tamil Nadu Health Secretary J Radhakrishnan said that people at public gatherings would be tested randomly in the coming days to check for any clusters.
He said that there was no need for alarm over hotel employees testing positive for COVID-19.
The test positivity as of Monday was only about 2.7 per cent, he added.
So far, as many as 2,991 employees of about 20 star hotels and 5,732 employees of other hotels have been tested in the city. The authorities have received results of around 5,000 samples and 136 of them have been tested positive.
Commenting on more UK returnees testing positive for the mutant variant of coronavirus, Radhakrishnan said the treatment procedures were the same as the one being followed now. Separate treatment protocol has not been devised, as there was no difference in clinical manifestation of the mutant strain, he said.
‘Though we have kept these patients in a separate wing at the King Institute in Guindy, the protocol is the same. The Union Health Ministry or the World Health Organisation has not given any new protocol for their treatment,’ he added.