Covid-19 Vaccines

Covid-19 vaccines are biological preparations intended to provide immunity against the coronavirus SARS-CoV-2, which causes the disease Covid-19. These vaccines work by stimulating the body’s immune system to recognize and fight the virus if exposed. They can be based on different technologies, including mRNA, viral vector, protein subunit, and inactivated or live attenuated virus. The primary goal of Covid-19 vaccines is to reduce the incidence of severe illness, hospitalization, and death associated with the virus. Vaccination is a key public health strategy to control the spread of Covid-19 and achieve herd immunity within populations. Various Covid-19 vaccines have been developed and authorized for emergency use in different countries, and their effectiveness and safety have been evaluated through clinical trials.