AstraZeneca has stated that COVID-19 vaccine is 80% effective at preventing the virus in the elderly. Following its US phase III efficacy tests, it was also added that there is no risk of blood clots after the rumours circled around the vaccine. The vaccine proved to be 79% effective at preventing symptoms in the overall population and 100% effective at preventing sever disease and hospitalisation.
After several countries had paused or advised against using the AstraZeneca vaccine due to blood clot fears, the US trials included 32,449 participants of which two thirds received the jab. Many countries have resumed the vaccinations with AstraZeneca vaccines.
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