Home State and City Delhi/NCR Delhi: Second sero survey from today, 15k samples targeted | Delhi News

Delhi: Second sero survey from today, 15k samples targeted | Delhi News

Delhi: Second sero survey from today, 15k samples targeted | Delhi News


NEW DELHI: The second round of the serological survey in the capital will begin on Saturday, with the authorities targeting to cover nearly 15,000 people to analyse the prevalence of antibodies in Delhiites in different districts. The tests will have to be completed by August 7.
All arrangements have been made in the 11 districts to start the exercise, which will be crucial to find out if Delhi is heading towards herd immunity from novel coronavirus. The first serological survey in Delhi, in which the sample size was 21,387, revealed nearly a quarter of its population had developed antibodies.
Teams of lab technicians, doctors, civil defence volunteers and ASHA workers will go to selected areas to collect samples in the morning. Earlier, the sero survey was scheduled to be completed by the fifth day of every month, but the deadline has been extended this time due to festivals.
The districts have been given different targets of sample collection. North West district, which collected the largest number of samples at 3,548 during the last survey, will have to collect 2,200 samples, and West district 2,150 samples against 2,373 in the previous one. Central district, which collected 2,702 samples earlier, has been asked to gather 1,548 samples.
Sandeep Kumar Mishra, district magistrate of North West district, said he had directed all 16 collection teams to ensure multi-stage systematic random representative sampling as per the guidelines. “It is critical in projecting the accurate prevalence of antibodies in people. It is more important than the size of samples,” Mishra said.
In Central district, 16 teams will collect samples from different areas across various age groups to ensure that the samples represent the entire administrative unit, said district magistrate Nidhi Srivastava.
Arun Gupta, additional district magistrate of South, said no sample would be collected from the areas covered in the last survey.
Since the sero survey reveals the prevalence of antibodies in population at a micro level, it helps the district authorities plan interventions for mitigation and containment of Covid-19.
The samples will be collected from various areas, including those without any any Covid-19 case, containment and buffer zones, those with only isolated cases, upscale and middle colonies, and slums. All individuals covered in the first survey will be excluded from sampling this time.
Directions have been issued to the field teams to ensure that out of the total number of samples, 25% should be of those younger than 18 years, another 25% of those in the age group of 50 years and above, and the remaining 50% from those in the age group of 18-49 years. All districts have been allocated different laboratories to send their samples for tests.


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