SR | Protective effectiveness of previous SARS-CoV-2 infection and hybrid immunity against the omicron variant and severe disease

Protective effectiveness of previous SARS-CoV-2 infection and hybrid immunity against the omicron variant and severe disease: a systematic review and meta-regression – The Lancet Infectious Diseases

Editorial: The benefit of vaccination after previous SARS-CoV-2 infection in the omicron era – The Lancet Infectious Diseases

News Release: University of Calgary and WHO researchers find hybrid immunity is the best protection against COVID-19

Commentaries:

Review finds hybrid immunity provides best protection against Omicron – CIDRAP

Hybrid Immunity Protects Better Against Hospitalisation and Severe COVID Infection – Health Policy Watch