evidence: The vaccine is safe and effective for all individuals aged 18 and above. In line with the WHO Prioritization Roadmap and and the WHO Values Framework older adults, health workers and immunocompromised persons should be prioritised. [...] The AstraZeneca vaccine is safe and effective at protecting people from the extremely serious risks of COVID-19, including death, hospitalization and severe disease. Read the 16 April 2021 statement of the WHO Global Advisory Committee on Vaccine Safety on AstraZeneca COVID-19 vaccine for reports of very rare side effects. The Council for International Organizations of Medical Sciences classifies rates of adverse events or medicines and vaccines as follows: [...] There will be no further updates to this page. For more information on Covid-19 vaccines.