The vaccine takes time to begin working. It can take around two weeks after each shot for the vaccine to be fully effective. Also, after you’ve been vaccinated you may still catch COVID and have mild symptoms. Because you can still carry the virus, (even if it doesn’t make you visibly sick) it’s important to wear a mask and maintain social distancing to make sure you do not pass the virus to others who are not yet vaccinated. The combination of getting vaccinated and following CDC’s recommendations to protect yourself and others will offer the best protection from COVID-19.