1. An interactive website tracking COVID-19 vaccine development;Shrotri;Lancet Glob Health,2021
2. Two-dose SARS-CoV-2 vaccine effectiveness with mixed schedules and extended dosing intervals: test-negative design studies from British Columbia and Quebec, Canada;Skowronski;medRxiv,2021
3. Product-specific COVID-19 vaccine effectiveness against secondary infection in close contacts, Navarre, Spain, April to August 2021;Martínez-Baz;Euro Surveill,2021
4. Effectiveness of BNT162b2 (Comirnaty, Pfizer-BioNTech) COVID-19 booster vaccine against COVID-19 related symptoms in England: test negative case-control study;Andrews;medRxiv,2021