Senior Epidemiologist

Joined June 2019
Hiam Chemaitelly retweeted
Our study published in NEJM showed that Pfizer's effectiveness against infection declined substantially over time after second dose, but protection against hospitalization and death persisted at >90% for six months. Link: nejm.org/doi/full/10.1056/NE… #COVID19 #Pfizer @WCMQatar @NEJM
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Hiam Chemaitelly retweeted
Encouraging thread on vaccine effectiveness against variants. Variants are among the most critical items to keep an eye on. Ab binding & neutralization does drop. However, as @EricTopol details - protection against severe disease (what matters) is thus far remaining v strong!
Most important new report today, and highly encouraging: Real world vaccine effectiveness (E) in >380,000 people in Qatar to B.1.1.7 (UK) and B.1.351 (South Africa) variants, *100% E vs severe illness both*👍 @NEJM nejm.org/?query=featured_hom…
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Hiam Chemaitelly retweeted
1st real-life effectiveness data of Pfizer against South African variant from Qatar: 75% against infection by B.1.351 100% against disease by B.1.351 75% against infection by B.1.1.7 97% against disease by any type @NEJM @Laith_AbuRaddad @HChemaitelly nejm.org/doi/full/10.1056/NE…
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Hiam Chemaitelly retweeted
Can't be more proud of my mentor @Laith_AbuRaddad & my friends & collaborators at @IDEGQatar @WCMQatar for publishing their latest covid research in New England Journal of Medicine! Findings summary in another tweet. This is just to say MABROUK! @HChemaitelly @HousseinAyoub14
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Media Coverage of my latest paper on Chlamydia infection in the Middle East and North Africa which was very well received locally and internationally, first STI paper from the region to feature in a high impact Journal #Lancet #Chlamydia #Infection #Epidemiology #MENA
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My latest paper on Chlamydia trachomatis epidemiology in the Middle East and North Africa published in The Lancet Global Health with a commentary. thelancet.com/journals/langl…
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