The passenger, along with his family members who were asymptomatic, were admitted to The King Institute of Preventive Medicine and Research in Chennai and were 'doing fine'.
The bulletin said one of those who have been infected with Omicron had travelled to Bengaluru, while the others had visited New Delhi.
The man landed in Mumbai from Tanzania on December 4 and his samples were sent for genome sequencing when he tested positive for coronavirus.
Underlining that the nature and virulence of COVID-19 pandemic is 'unpredictable', the committee cautioned that alertness and preparedness cannot be compromised at any stage.
These seven persons, including an NRI woman and her two daughters from Nigeria, had tested positive for Omicron in Pune last week.
Persons inoculated with such vaccines, which are listed under the WHO-EUL, are deemed to be protected by authorities of many countries and allowed to travel internationally, Bharati Pravin Pawar said.
Advocate Raunaq Rao told a division bench that a lawyer briefing senior counsel Amit Desai had tested COVID-19 positive, and requested a postponement, which was granted.
Samples of the quartet sent for genome sequencing to ascertain if they have Omicron
The positivity rate among those aged over 18 years (13.8 per cent) was relatively higher than those aged 0-17 years (11.6 per cent) and comparable with the overall positivity.
Over 1.95 vaccine doses have been administered in the national capital so far, with over 68.04 lakh being second doses, according to official figures.
The daily rise in new coronavirus infections has been below 30,000 for 17 straight days and less than 50,000 daily new cases have been reported for 106 consecutive days now.
The administration has made negative RT-PCR (done within 72 hours) and rapid antigen (within 24 hours) test reports mandatory for devotees who have not undergone vaccination against coronavirus.
The Indian SARS-CoV-2 Genomics Consortium (INSACOG) said Mu has mutations that indicate potential immune escape properties.
ICMR’s Bhubaneswar centre study finds higher antibodies in those who took Covishield vaccine compared to Covaxin.
Addressing a press conference, officials said India is still going through the second wave of coronavirus infections and it is not over yet.