Nearly one in four people in Delhi may have contracted Covid-19, study reveals


The survey tested blood samples of 21,387 people across Delhi. Among them, 23.48% were found to have Covid-19 antibodies, indicating past exposure to the coronavirus.

The study, conducted by India’s National Center for Disease Control two weeks ago, suggests actual infections in the city are much more widespread than the number of confirmed cases reflects.

As of Wednesday, Delhi has recorded a total of 125,096 cases, accounting for less than 1% of its population of 16.78 million, according to the last census carried out in 2011.

The result of the study, however, suggests that around 4 million Delhi residents could have been infected with the virus by the first week of July.

Delhi is the worst-hit city in India, with the highest number of coronavirus cases as well as the most cases per capita.

The coronavirus is still fast spreading in the country, with 37,724 new cases reported in the past 24 hours, bringing the total to more than 1.19 million cases — the third highest in the world after the United States and Brazil.

Delhi reported 1,349 new cases on Tuesday. At least 3,690 people have died of the coronavirus in the city.

In a press release, India’s health ministry said the study indicated that a large number of people infected remained asymptomatic.

“Nearly six months into the epidemic, only 23.48% of the people are affected in Delhi, which has several pockets of dense population,” the ministry said.

“This can be attributed to the proactive efforts taken by the government to prevent the spread of infection,” it said, citing containment measures such as prompt lockdowns and contact tracing.

When India went into lockdown on March 25, Delhi had recorded just 606 cases of Covid-19 and 10 deaths. But the numbers started rising after the city first started easing lockdown restrictions in the third week of May in a bid to resuscitate its economy. By June 8, it had more than 40,000 cases.

As Delhi becomes India's coronavirus capital, its hospitals are struggling to cope
Since then, the city has struggled to provide enough hospital beds to cope with the surging caseload, with doctors and nurses overwhelmed by the large influx of patients.

Other cities around the world have conducted similar antibody studies in the past, but the figures in their results are much lower than Delhi’s 23.48%.

In May, Sweden said 7.3% of people in its capital Stockholm had developed the antibodies by late April, based on 1,118 blood tests carried out in one week.
In New York, a study sponsored by the New York State Department of Health found that 14% of adults in the state had Covid-19 by the end of March, 10% higher than the official count.



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