1. Seroprevalence of SARS-CoV-2 infection in the craft and manual worker population of Qatar
- Author
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Einas Al Kuwari, Hiam Chemaitelly, Andrew Jeremijenko, Hamad Eid Al Romaihi, Odette Chaghoury, Laith J. Abu-Raddad, Hadi M. Yassine, Saed M. A. Saefan, Sandeep Chougule, Ahmed Ismail, Monther H. A. Al-Shedifat, Mohamed Sahl, Hanan F. Abdul Rahim, Inayath M. Umar, Ayat A. Alkhalaf, Ashraf Abdelkarim, Mohamed Morhaf M. H. Alakshar, Ahmad Ali Ataalla, Faisal Daraan, Mohamed M. Thaivalappil, Elmoubasher Farag, Peter Coyle, Abubacker S. Thoyalil, Adeel A. Butt, Abhilash K. K. V. Gopinathan, Abdulsalam Ali A. H. Al-Qahtani, Bassam K. Akkarathodiyil, Nahid Mostafa, Hasan Ali Kasem, Riyazuddin Mohammad Shaik, Meynard J. A. Agsalog, Anas Ansari, Mohamed H. Al-Thani, Roberto Bertollini, Feroz J. Poolakundan, Ali Nizar Latif, Sami Abdeen, Zaina Al Kanaani, Jinan Suliman, Anvar Hassan Kaleeckal, Gheyath K. Nasrallah, Elias Tayar, Sanjay U. Ranbhise, Abdullatif Al Khal, and Mohamed Ghaith Al Kuwari
- Subjects
education.field_of_study ,medicine.medical_specialty ,business.industry ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Population ,Asymptomatic ,Herd immunity ,Serology ,law.invention ,law ,Internal medicine ,medicine ,Seroprevalence ,Infection severity ,medicine.symptom ,education ,business ,Polymerase chain reaction - Abstract
BackgroundQatar experienced a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic that disproportionately affected the craft and manual worker (CMW) population who comprise 60% of the total population. This study aimed to assess the proportions of ever and/or current infection in this population.MethodsA cross-sectional population-based survey was conducted during July 26-September 09, 2020 to assess both anti-SARS-CoV-2 positivity through serological testing and polymerase chain reaction (PCR) positivity through PCR testing. Associations with antibody and PCR positivity were identified through regression analyses.ResultsStudy included 2,641 participants, 69.3% of whom were ConclusionsSix in every 10 CMWs have been infected, suggestive of reaching the herd immunity threshold. Infection severity was low with only one in every 200 infections progressing to be severe or critical. Only one in every 10 infections had been previously diagnosed suggestive of mostly asymptomatic or minimally mild infections.
- Published
- 2020
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