SARS-CoV-2 seroprevalence in Chattogram, Bangladesh before the Delta surge, March-June 2021

  1. Taufiqur Rahman Bhuiyan
  2. Juan Dent Hulse
  3. Sonia T. Hegde
  4. Marjahan Akhtar
  5. Md. Taufiqul Islam
  6. Zahid Hasan Khan
  7. Ishtiakul Islam Khan
  8. Shakeel Ahmed
  9. Md Mamunur Rashid
  10. Rumana Rashid
  11. Emily S. Gurley
  12. Tahmina Shirin
  13. Ashraful Islam Khan
  14. Andrew S. Azman
  15. Firdausi Qadri
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Abstract

In a representative serosurvey conducted March–June 2021, 64.1% (95%CrI 60.0– 68.1%) of Sitakunda subdistrict (Bangladesh) had anti-SARS-CoV-2 IgG antibodies after adjusting for age, sex, household clustering and test performance. Before the surge of Delta, most of the population had been infected despite low incidence of virologically-confirmed COVID-19.

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