Delhi’s sixth sero survey reveals 90% of people have antibodies against Covid
The Delhi government data revealed that the ‘delta variant‘ and its sublineages of the ‘Sars-Cov-2‘ virus were detected in 99 percent of samples sent for genome sequencing in the month of October.
Over 7,300 samples have been sequenced from Delhi since Indian Sars-CoV-2 Genomics Consortium (INSACOG) was set up early this year. As per data, of the total 7,361 samples collected, the delta variant was detected in 2,873 samples (39.03 percent).
According to the government data, the delta variant was found in 54% of the samples that were sequenced in April, and 82% in May. Whereas the Genome sequencing data revealed that delta variant was detected in 99 percent of the sample in October, 97 percent in September, 86 percent in August, and 52 percent in July. In the months of April and May.
During the peak of the second wave of Covid, 54 and 82 percent of total samples sent for sequencing were respectively detected with the delta variant.
In the months of June and July, 90 percent and 52 percent of samples were detected with delta variants.
Of 6,235 samples that were sent to the National Centre for Disease Control (NCDC), the delta variant was detected in 2,268. Delta variants were detected in 531 from 1,027 sent to the Institute of Liver and Biliary Sciences (ILBS) for genome sequencing.
Of 99 samples sent to Lok Nayak Hospital, 74 were detected with the delta variant. Alpha variants were detected in only 966 samples.
Sources said that delta variant was found in almost half the samples, followed by AY.4 sublineage. Meanwhile, Delhi’s sixth serological survey report has revealed 90 percent of people in the national capital have developed antibodies against the Coronavirus.
The sixth serological survey also revealed that more numbers of women are sero positive than men in Delhi. More than 85 percent of seropositivity has been found in every district of Delhi. It was the first sero survey done in Delhi after the second wave of Covid in the country.
Dr. Ekta Gupta, who heads the regional INSACOG laboratory at the Institute of Liver and Biliary Sciences in Delhi said, “The original delta continues to be the most common sequence, which is followed by AY.4 sublineage of the delta.”
Another senior scientist from INSACOG said AY.4 was the most common delta sub-lineage found in Delhi, however, there was no clinical significance of the variant yet, meaning it is not so far known to cause more infections, more severe infections, or infections in those who have been previously infected or have been completely vaccinated.
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