What is the effectiveness of fourth dose mRNA vaccination against Omicron type?
In a recently published study British Medical Journal (BMJ)Researchers evaluated the efficacy of a fourth dose of vaccine against coronavirus disease 2019 (COVID-19) among long-term care residents. Study: Effectiveness of the fourth dose of the COVID-19 mRNA vaccine against the Omicron variant among long-term care residents in Ontario, Canada: a trial negative design study. Image … Read more