A member of the Syria Immunization Team holding cholera vaccinations. Anas Alkharboutli/picture alliance via Getty Images June 27, 2023 Cholera: vaccines can stop the spread, but the biggest deterrent is clean water Edina Amponsah-Dacosta, University of Cape Town and Julie Copelyn, University of Cape Town The aim of vaccination is to prevent infection. In addition, vaccination is intended to reduce the risk of severe illness.