A COVID‑19 vaccine is a biotechnology product intended to provide acquired immunity against coronavirus disease 2019 (COVID‑19).

Researchers around the world are racing to develop a vaccine against Covid-19, with more than 170 candidate vaccines now tracked by the World Health Organization (WHO).

How Vaccines Work

·         Weak Germs Injected

Traditionally, vaccines contain the same germs, either killed or weakened, or part of the germ that causes the disease.

·         Antibodies Created

They stimulate immune system to produce antibodies, as if you were exposed to the germ.

·         Immunity Developed

After getting vaccinated, one develops immunity to that disease without having to get it first.

Corona Vaccine Categories

1.       Genetic Vaccines

Vaccines that use one or more of the coronavirus’s own genes to provoke an immune response.

DNA or RNA Vaccines

2.       Viral Vector Vaccines

Vaccines that use a virus to deliver coronavirus genes into cells and provoke an immune response.

Vaccines Using Adenovirus or Other Viruses

3.       Protein-Based Vaccines

Vaccines that use a coronavirus protein or a protein fragment to provoke an immune response.

Virus-Like Particle Vaccines

4.       Whole-Virus Vaccines /Inactivated virus vaccine

Vaccines that use a weakened or inactivated version of the coronavirus to provoke an immune response.

5.       Repurposed Vaccines

Vaccines already in use for other diseases that may also protect against Covid-19.