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. 2022 Mar-Apr:46:102276.
doi: 10.1016/j.tmaid.2022.102276. Epub 2022 Feb 16.

Evidence of early community transmission of Omicron (B1.1.529) in Delhi- A city with very high seropositivity and past-exposure

Rahul Garg  1 , Pramod Gautam  2 , Varun Suroliya  2 , Reshu Agarwal  1 , Arjun Bhugra  1 , Urvinder S Kaur  3 , Santanu Das  3 , Chhagan Bihari  3 , Anil Agarwal  4 , S K Sarin  5 , Ekta Gupta  6
Affiliations

Evidence of early community transmission of Omicron (B1.1.529) in Delhi- A city with very high seropositivity and past-exposure

Rahul Garg et al. Travel Med Infect Dis. 2022 Mar-Apr.
No abstract available

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig. 1
Fig. 1
Lineage and timeline profile of SARS-CoV-2 in Delhi (November 25th- December 23rd, 2021) with formation of local clusters and eventual community transmission of Omicron. A) The district-wise distribution of cases (n = 264). B) Variant distribution across five districts of Delhi. The Omicron BA.1 is shown in red and BA.2 in orange colour. The Delta parent lineage (B.1.617.2) is shown in blue and rest Delta sub-lineages in grey colour. C) Daily progression of SARS-CoV-2 lineages with respect to travel history and community transmission. T/C- History of Travel or Contact; NoT- No history of travel or contact. D) Geo-tagging of Omicron cases (n = 82) from five districts of Delhi. Black dotted circles represent local cluster with three or more cases in close vicinity. Red solid circles denote multiple cases from same families. Cases are labeled based on confirmed travel history (Green), Contacts of cases with travel history (Red) and cases with no travel history (Blue). E) Location of family clusters in Delhi. A total of 14 families with 38 Omicron cases were identified. Plotted here are families colored by their respective travel history, possible community acquired infection and both. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
See this image and copyright information in PMC

References

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    1. Sharma P., Basu S., Mishra S., et al. medRxiv; 2021. SARS-CoV-2 seroprevalence in Delhi, India - September-October 2021 – a population based seroepidemiological study. - DOI - PMC - PubMed
    1. India today: Delhi achieves 100% rate for first Covid-19 vaccine dose [Internet] https://www.indiatoday.in/cities/delhi/story/delhi-100-rate-first-covid-...