All of the vaccines being offered by Harris County are safe and effective at protecting people from getting seriously ill, being hospitalized, and even dying—especially when boosted. You can choose which COVID-19 vaccine to get depending on your age and preference.
For adults ages 18 years and older, the mRNA COVID-19 vaccines (Pfizer-BioNTech or Moderna) and protein-based COVID-19 vaccine (Novavax) are preferred over Johnson & Johnson’s Janssen COVID-19 vaccine. The primary difference between these vaccines is that the Pfizer, Moderna, and Novavax vaccines require two shots whereas the Johnson & Johnson vaccine can be administered in one shot. Maximize protection and get all recommended vaccine doses and boosters as soon as possible.
Currently, the Pfizer & Moderna COVID-19 vaccines are the only COVID-19 vaccines available to children 6 months to 11 years old.