It Took Less Than 12 Months to Develop Vaccines for Covid-19. Why is there No HIV/AIDS Vaccine After 37 Years?
Smallpox has been eradicated from the face of the Earth following a highly effective, worldwide vaccination campaign. Paralytic poliomyelitis is no longer a problem in the U.S. because of development and use of effective vaccines against the poliovirus. In current times, millions of