COVID-19 Vaccines | NIH COVID-19 Research
covid19.nih.gov › treatments-and-vaccines › covid-19New and ongoing studies on vaccines are underway. NIH Institutes and Centers, in partnership with private businesses, continue to study different types of vaccines. Some current research aims to determine whether approved vaccines will grant immunity against emerging COVID-19 variants and whether new vaccines will be needed. Other vaccine studies continue to monitor the health of people who have already had a vaccine to determine their effectiveness over a longer period of time.