Second round of sero survey begins in Delhi

August 02, 2020 07:46

A fresh sero-prevalence survey began on Saturday for a comprehensive assessment of the COVID-19 situation in Delhi, but due not many samples could be collected due to the Eid holiday, officials said.

Hence it has been decided to extend the survey till Friday, an official said.

Originally a five-day exercise from August 1-5 that began with four districts on Saturday, it will span all districts and cover various demographic segments.

However, another source said one more district was covered on Saturday and rest six districts would be taken up on Sunday. Delhi has a total of 11 districts.

Not many samples could be collected on the first day since it was a festival. So, the survey will be carried for extra two days till August 7, according to an official.

The exercise is being undertaken for a comprehensive assessment of the COVID-19 situation in Delhi.

According to the survey's standard operating procedures handed out to the field units, each sample collection team is to collect 25-40 samples per day.

"All districts are to ensure that out of total number of samples, 25 per cent are of those younger than 18 years of age, another 50 per cent are in the age group of 18-49 years and remaining 25 per cent of those in the age group of 50 years or more," reads the SOPs issued by the Delhi's Directorate General of Health Services.

Also, selection bias must be avoided. The individual or household that was included in the previous round of sero-survey must be excluded, it added.

Teams in the field will collect the samples and will transport it the same day to the designated laboratories for processing. Sample collection must be completed latest by 2 pm so that samples reach the designated labs latest by 4 pm, reads the SOP.

-- PTI

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