Because early data shows that vaccinated people can actually reduce the spread as well. > We are still learning how well vaccines prevent you from spreading th

Because early data shows that vaccinated people can actually reduce the spread as well. > We are still learning how well vaccines prevent you from spreading the virus that causes COVID-19 to others, even if you do not have symptoms. Early data show that vaccines help keep people with no symptoms from spreading Source: COVID-19 Key Things to Know About COVID-19 Vaccines https://www.cdc.gov/coronavirus/2019-ncov/vaccines/keythingstoknow.html https://www.cdc.gov/coronavirus/2019-ncov/vaccines/keythings... Reducing the spread means reducing risk to people who cannot get the vaccine due to Heath reasons. It also means the virus is less successful in spreading and therefore less mutation.