Vaccines and Immunization

HIV Vaccines

The most important breakthroughs of the past century involved the development of vaccines to protect against viruses: smallpox, polio, hepatitis, human papillomavirus (HPV), and even chickenpox. But one virus remains elusive to those seeking to create a vaccine to guard against it: HIV. Getting vaccinated early, before sexual exposure, is also effective in preventing certain types of STIs. Vaccines are available to prevent human papillomavirus (HPV), hepatitis A and hepatitis B.