A lab worker extracts DNA from samples for further tests at the AIDS Vaccine Design and Development Laboratory Dec. 1, 2008 in New York City. Chris Hondros/Getty Images Ronald C. Desrosiers, University of Miami Smallpox has been eradicated from the face of the Earth following a highly effective, worldwide vaccination campaign. Paralytic poliomyelitis is no … Continue reading HIV vaccine: Why Are We Incapable of Making a Shot for AIDS 37-years Later, When We Had Several for COVID-19 In a Few Months?