The impact of COVID-19 vaccines on the pandemic will depend on several factors, including effectiveness of the vaccines, country preparedness, and how many people get vaccinated.
Vaccines will significantly improve the toolkit we have to fight this disease - but not replace it. While we achieve the optimal vaccine coverage, all the other measures to prevent infection and transmission should be followed.
Importantly, the vaccination strategy recommended by WHO prioritizes vaccination of risk groups: residents of nursing homes and long-term care facilities and those who are at higher risk of severe illness from COVID-19.
Implementation of this strategy will have a great impact on reducing severe COVID-19 disease and deaths even though these groups represent a relatively small proportion of the global population.