Now a days there are so many vaccines available to control this pandemic condition in all over world. this was start in December 2020. number of dosses are daily updated. Across 4 different platform are use to been administered for atlest 13 types of vaccines.
Several different types of potential vaccines for COVID-19 are in development, including:
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.
Protein-based vaccines, which use harmless fragments of proteins or protein shells that mimic the COVID-19 virus to safely generate an immune response.
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.
RNA and DNA vaccines, a cutting-edge approach that uses genetically engineered RNA or DNA to generate a protein that itself safely prompts an immune response.
Many vaccine candidates will be evaluated before any are found to be both safe and effective. For example, of all the vaccines that are studied in the lab and laboratory animals, roughly 7 out of every 100 will be considered good enough to move into clinical trials in humans.
Enough doses have now been administered to fully vaccinate 36.6% of the global population—but the distribution has been lopsided. Countries and regions with the highest incomes are getting vaccinated more than 20 times faster than those with the lowest.