25% Delhi population have had coronavirus infection says new research

4.7 million people out of 20 million population infected with virus

25% people in Indian capital Delhi have had coronavirus infections. A new study by National Center for Disease Control (federal health ministry) has cast serious doubt on the official numbers both in Delhi and across India. India last week became the third country after the United States and Brazil to hit one million cases but many experts have long said that with testing rates low, the true number could be much higher.

Blood tests on 21,387 randomly selected people across Delhi conducted by the National Center for Disease Control found that 23.48 percent of them had IgG antibodies – indicating past exposure to the virus. The survey was conducted between June 27 and July 10.

 With Delhi's population of more than 20 million, the findings published Tuesday by the federal health ministry suggest that 4.7 million people have had the virus, almost 40 times the official tally of 1,20,000.

While praising government restrictions that have limited the spread of the virus, the ministry said the study "indicates that a large number of infected persons remain asymptomatic." And more than 75 percent are still vulnerable, including those at higher risk, Sujeet Kumar Singh, head of the National Centre for Disease Control, told a news conference.

On Wednesday, India's health ministry reported a 1.19 million coronavirus cases so far with almost 29,000 deaths. Maharashtra, Delhi and Tamil Nadu states are the worst affected.

Prime Minister Narendra Modi's government imposed one of the world's strictest lockdowns in late March, but it has been steadily eased in recent months to lessen the devastating economic impact.

Daily new cases have been steadily falling in recent weeks, with fewer than 1,000 new infections recorded on Tuesday – the first time in 49 days – down from a peak of almost 4,000 in late June.

                                                              Rukhsana Manzoor Deputy Editor