WHO: Widespread COVID-19 Vaccinations Not Expected Until Mid-2021
The World Health Organisation (WHO) does not expect widespread vaccinations against COVID-19 until mid-2021 due to the importance of clinical and human testing results and safety checks.
Margaret Harris, spokesperson for the WHO said none of the Coronavirus candidate vaccines in advanced clinical trials so far demonstrated a “clear signal” of efficacy at the level required by the WHO.
“It is unlikely that we will see mass vaccinations against COVID-19 before the middle of next year,” Harris told a U.N. briefing.
“This phase 3 [large-scale human trials] must take longer because we need to see how truly protective the vaccine is and we also need to see how safe it is,” she added.
The WHO requires efficacy at the level of at least 50% while ensuring of the vaccine’s safety.
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