100 per cent city patients had Omicron: Sero survey

A medic collects a cop’s samples for Covid-19 test, at Vidhan Sabha, on March 1. Pic/Suresh Karkera

The Omicron variant of novel Coronavirus was found in all the 237 samples collected in Mumbai for genome sequencing, shows the 10th round of sero survey. In the last sero survey, the figure stood at 95 per cent.

The BMC collected 376 samples, out of which 237 were from Mumbai. Among the 237 people from the city whose samples were taken, 29 are in the age group of 0-20 years, and 69 in 21-40 years age group, 69 in 41-60 years age group, 59 in 61-80 years age group and 11 in 81-100 years age group. Majority of these patients had mild symptoms.

Until mid-December, the Delta variant was found among samples collected for genome sequencing. Omicron started showing up in most samples in the sero surveys conducted since the end of December.

Vaccination analysis

Six of the 237 patients received only the first dose of the Covid-19 vaccine and one was hospitalised, while 128 others were fully vaccinated of which seven had to be hospitalised, the survey has found.

One of the seven patients was put on oxygen support, while one was admitted to the intensive care unit (ICU). The remaining 103 patients were not vaccinated, and 18 of them had to be hospitalised. While two patients needed oxygen support, one was in the ICU.