COVID-19: Delhi govt's next round of sero-survey begins; sample size 15,164

October round of monthly sero-prevalance survey in national capital, which got delayed earlier, has started, sources said on Friday. last survey was held from September 1-7 to better assess COVID-19 situation here and formulate combat strategies.

exercise was slated to begin from October 1, but got delayed as results of survey done last month was presented to Delhi High Court on September 30. "This month's survey began from October 15. A total of 15,164 samples will be taken," an official source said. national capital recorded 22 COVID-19 fatalities on Friday, as toll mounted to 5,946 while 3,428 fresh cases took tally to over 3.24 lakh, authorities said.

Delhi Health Minister Satyendar Jain, in a media briefing, said overall case fatality is 1.83 per cent. Later in a Facebook post, he also said that sero-prevalance survey for October month began on Thursday.

September survey h found that sero-prevalence of antibodies to COVID-19 h reduced to 25 per cent, from nearly 29 per cent recorded in August exercise, among people in national capital, Delhi High Court was informed.

September survey also found that nearly one-third of participants with a past history of COVID-19 infection "did t have detectable IgG antibodies". "However, re is evidence that antibodies to COVID-19 may deplete over time," it ded. Sample size in last month's exercise was about 17,000.