Sinovac given for Covid-19 is a

Sinovac (also known as CoronaVac) is an inactivated whole-virus vaccine against COVID-19. It is developed by the Chinese company Sinovac Biotech.

• Whole virus vaccine: These use the entire SARS-CoV-2 virus that has been "killed" or inactivated (usually using beta-propiolactone) so it cannot replicate, but still triggers an immune response. Other examples include Covaxin and Sinopharm.
• Non-replicating viral vector: These use a different, harmless virus (like an adenovirus) to deliver the genetic code of the spike protein (e.g., Oxford-AstraZeneca/Covishield, Sputnik V).
• mRNA vaccine: These use messenger RNA to teach cells how to make the spike protein (e.g., Pfizer-BioNTech, Moderna).
• Protein sub-unit: These use purified pieces of the virus, like the spike protein, to trigger immunity (e.g., Novavax/Covovax, Corbevax).