In an Interim statement on booster doses for COVID-19 vaccination with support of the Strategic Advisory Group of Experts (SAGE) on Immunization, the group recommends that booster doses be targeted at only groups with the greatest need.
Evidence on the need for a widespread administration booster doses, following primary vaccination rounds remains limited and inconclusive, the World Health Organisation (WHO) has said.
It said introducing booster should be strictly guided by evidence on waning vaccine effectiveness, in particular
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