5 Types to Know About
▶ Inactivated
These vaccines, which include the polio shot, contain a deactivated or “killed” version of a virus or bacteria.
▶ Live-Attenuated
The measles, mumps, and rubella (MMR) vaccine is live-attenuated, which means it uses a weakened form of a pathogen.
▶ mRNA
This technology, which was used to create COVID-19 vaccines in record time, contains the genetic code of a virus. Some people have raised concerns about mRNA, including the possibility that it could change human DNA. But the genetic material that’s in mRNA vaccines doesn’t integrate into our DNA, says Richard Martinello, MD: ”It’s biologically impossible for the vaccine to alter our DNA.”
▶ Subunit, Recombinant, Polysaccharide, and Conjugate
These contain specific components of a germ, such as its proteins. Hepatitis B, pertussis, and…