Omicron Covid Variant Highlights: A 33-year-old man who returned from South Africa's Cape Town to Maharashtra's Mumbai via Dubai and Delhi has tested positive for Omicron variant of coronavirus. The passenger is a resident of Kalyan-Dombivli municipal area and has not taken the Covid-19 vaccine. Twelve of the passenger's high-risk contacts and 23 of the low-risk contacts have been traced and all have tested negative for Covid-19. Additionally, 25 of the co-passengers from the Delhi-Mumbai flight have also tested negative. More contacts are currently being traced. This is the fourth Omicron case to be detected in India. Earlier in the day, a 71-year old NRI, who landed in Gujarat's Jamnagar city from Zimbabwe was found to be infected with the Omicron variant, according to the nodal officer of Covid-19 in the city. Two samples of the patient were sent — one to Gujarat Biotechnology Research Centre, which detected the presence of the Omicron variant, and another to NIV Pune. The whole genome sequencing report from NIV is expected on Monday. Two people in Karnataka - a 46-year-old doctor and a 66-year-old South African national - were found to be infected with the new variant. In other news, the Centre has said that it anticipates the severity of the Omicron variant of coronavirus to be low in the country given the fast pace of vaccination and high exposure to the Delta variant. Speaking in the Parliament, Health Minister Mansukh Mandaviya on Friday highlighted that a decision on booster dose and Covid jabs for children will be taken on the basis of scientific guidance from experts.