COVID-19 vaccine<unk>  prop A<unk>  is a vaccine that uses a<unk><unk>  to deliver genetic material coding for a desired antigen into the recipient's host cells. , six<unk> s have been authorized for use in humans in at least one country: four COVID-19 vaccines and two Ebola vaccines.
Viral vector vaccine
Cell-based vaccine
Genetic vaccine
Synthetic vaccine
MRNA vaccine
Conjugate vaccine
Therapeutic vaccines
Vaccine therapy