Chennai: Four international travellers who returned from China and Dubai have tested COVID positive at the Madurai and Chennai international airports on Wednesday.

While a mother and her six-year-old daughter, who landed from China via Colombo tested positive for COVID at the Madurai International airport last evening, two others who arrived from Dubai tested positive at the Chennai international airport today.

A report from Madurai said the mother and daughter underwent RT-PCR tests upon their arrival and went to their home in Virudhanagar district.

As the results today returned positive, there were isolated in their home, according to District Collector Meghanatha Reddy.

Both of them were asymptomatic and their health condition was being monitored.

Their samples were being sent for further tests to the State Public Health Laboratory here for genome sequencing to ascertain whether they were infected with the new BF-7 variant, which is the main cause for spike in cases in some countries.

Efforts were on to trace their contacts to find out whether any of them were infected, he said.

Meanwhile, two other passengers, who landed from Dubai, have tested positive at the Chennai airport and both of them hail from Alangudi in Pudukottai district.

Their samples were also sent to the State Public Health Laboratory to test whether it is the new variant BF.7.

(With UNI inputs)