UPDATED: WHO & the Strategic Advisory Group of Experts (SAGE) interim statement on booster doses for #COVID19 vaccination πbit.ly/3pkOToe 
The focus of #COVID19 immunization efforts must remain on decreasing death and severe disease, and the protection of the health care system. πbit.ly/3pkOToe
In the context of ongoing global #COVID19 vaccine supply constraints & inequities, broad-based administration of booster doses risks exacerbating vaccine access. πbit.ly/3pkOToe
Introducing booster doses should be firmly evidence-driven & targeted to the population groups at highest risk of serious disease and those necessary to protect the health system. πbit.ly/3pkOToe
The vast majority of current infections and #COVID19 cases are observed in unvaccinated people. If breakthroughs occur in vaccinated persons, in most cases events are less severe than those in unvaccinated persons πbit.ly/3pkOToe
More data will be needed to understand the potential impact of booster vaccination on the duration of protection against severe disease, but also against mild disease, infection, and transmission, particularly in the context of emerging variants. πbit.ly/3pkOToe
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