Effects of BA.1/BA.2 subvariant, vaccination and prior infection on infectiousness of SARS-CoV-2 omicron infections

J Travel Med. 2022 Sep 17;29(6):taac068. doi: 10.1093/jtm/taac068.

Suelen H Qassim^{1

2

3}, Hiam Chemaitelly^{1

2

3}, Houssein H Ayoub⁴, Sawsan AlMukdad^{1

2}, Patrick Tang⁵, Mohammad R Hasan⁵, Hadi M Yassine^{6

7}, Hebah A Al-Khatib^{6

7}, Maria K Smatti^{6

7}, Hanan F Abdul-Rahim⁸, Gheyath K Nasrallah^{6

7}, Mohamed Ghaith Al-Kuwari⁹, Abdullatif Al-Khal¹⁰, Peter Coyle^{6

10

11}, Anvar Hassan Kaleeckal¹⁰, Riyazuddin Mohammad Shaik¹⁰, Ali Nizar Latif¹⁰, Einas Al-Kuwari¹⁰, Andrew Jeremijenko¹⁰, Adeel A Butt^{3

10

12}, Roberto Bertollini¹³, Hamad Eid Al-Romaihi¹³, Mohamed H Al-Thani¹³, Laith J Abu-Raddad^{1

2

3

8}

¹ Infectious Disease Epidemiology Group, Weill Cornell Medicine-Qatar, Cornell University, Doha, Qatar.
² World Health Organization Collaborating Centre for Disease Epidemiology Analytics on HIV/AIDS, Sexually Transmitted Infections, and Viral Hepatitis, Weill Cornell Medicine-Qatar, Cornell University, Qatar Foundation - Education City, Doha, Qatar.
³ Department of Population Health Sciences, Weill Cornell Medicine, Cornell University, New York, NY, USA.
⁴ Mathematics Program, Department of Mathematics, Statistics, and Physics, College of Arts and Sciences, Qatar University, Doha, Qatar.
⁵ Department of Pathology, Sidra Medicine, Doha, Qatar.
⁶ Biomedical Research Center, Member of QU Health, Qatar University, Doha, Qatar.
⁷ Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, Doha, Qatar.
⁸ Department of Public Health, College of Health Sciences, QU Health, Qatar University, Doha, Qatar.
⁹ Primary Health Care Corporation, Doha, Qatar.
¹⁰ Hamad Medical Corporation, Doha, Qatar.
¹¹ Wellcome-Wolfson Institute for Experimental Medicine, Queens University, Belfast, UK.
¹² Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY, USA.
¹³ Ministry of Public Health, Doha, Qatar.

No abstract available

Keywords: COVID-19; Omicron; breakthrough infection; epidemiology; immunity; sub-lineage; subvariant; vaccine.

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