What types of COVID-19 vaccines are being developed? How would they work?
Currently there have been extensive research undertaken since the start of pandemic for the development of Vaccines for COVID19 infection. Several different types of vaccines for COVID-19 are developed using various methods, including:
- RNA and DNA Vaccines: a new cutting-edge technology/approach that uses genetically engineered RNA or DNA to generate a protein that itself safely prompts an immune response (BioNTech/Pfizer and Moderna vaccines)
- Inactivated or weakened virus vaccines, which use a form of the virus that has been inactivated or weakened so it doesn’t cause disease, but still generates an immune response. (Sinovac)
- Protein-based vaccines, which use harmless fragments of proteins or protein shells that mimic the COVID-19 virus to safely generate an immune response. (Novavax)
- Viral vector vaccines, which use a safe virus that cannot cause disease but serves as a platform to produce coronavirus proteins to generate an immune response. (University of Oxford/AstraZeneca)