In order to protect against COVID-19, everyone ages 6 months and older should stay up-to-date on their vaccinations, including boosters if eligible. The risk of severe COVID-19 illness and death increases for people with certain medical conditions or who take medications that weaken their immune systems. In addition, their immune response to COVID-19 vaccination may be weaker than that of people who are not immunocompromised. In addition to COVID-19 vaccines, boosters are recommended for people with moderate or severe immunocompromised conditions. Researchers have found that getting vaccinated after being infected with the virus that causes COVID-19 provides added protection. Even if you have had COVID-19, healthcare professionals and researchers alike, recommend that you should still get vaccinated. If you have been infected with COVID-19, your next dose can be delayed for three months from when symptoms began or, if you did not have symptoms, when you received a positive blood test.