With the coronavirus cases ebbing across the country, a study has suggested that more than half of Delhi population have been infected with Covid-19 and have developed antibodies for the virus.
The fifth sero survey done in the national capital, where samples of around 25,000 people were collected between January 15 and 23, shows that antibodies were detected in 56.13 per cent of the city’s 20 million population, which means people have been infected with the virus and have recovered.
The study also suggested that the city was inching towards herd immunity – when the majority of the population becomes immune to a disease.
The serosurvey results were released by Delhi health minister Satyendra Jain February 2.
The highest seropositivity was reported from South East district with 62.18 per cent followed by East district (58.81 per cent), West district (58.60 per cent), South district (56.96 per cent), Central district (56.68 per cent), Shahdara (56.63 per cent), New Delhi (54.69 per cent), North West district (54.32 per cent), North East district (53.88 per cent), South West district (54.32 per cent) and North district (49.09 per cent).
Delhi has recorded the positivity rate of 114 in the past 24 hours, taking its total case load to 635,096. The serosurveys are considered to project the true rate of prevalence of infection against those that get through tests.
No other state or Union Territory has done such a largest survey, claims Delhi Director General of Health Services, Nutan Mundeja.
“This proves that Covid-appropriate behaviour has paid off. But this is not the time to drop our guard either as the fear of infection has not completely vanished,” Mundeja added.
Meanwhile, separate tests done by Thyrocare Technologies, a diagnostics company, on more than 700,000 people across the country shows that 55 per cent of the population have been infected.
According to the World Health Organisation at least 60-70 per cent of the population needs to have immunity to break the chain of transmission, as against the Indian officials who claims that a lower level can also slow the virus’s spread.
India has commenced the world’s biggest vaccination drive, as nearly 4 million people have been inoculated since mid-January.