The American Council on Science and Health lists 16 landmark public health achievements, including George Washington's 1777 order for Continental Army smallpox inoculations that saved forces from a disease killing 10 soldiers per battle death. Polio cases sharply declined after Jonas Salk's 1955 vaccine was deemed safe, with Albert Sabin's 1960s oral version enabling community-wide protection. CDC identified initial AIDS clusters in 1981 among young men; by 1996, NIH-supported combination antiretroviral therapy turned HIV into a manageable condition, bolstered by US companies like Gilead and PEPFAR in 2003. These advances revolutionized medicine from antibiotics to organ transplants and birth control.