NATS 1670 Study Guide - Midterm Guide: Polio Vaccine, Smallpox, Microorganism
8 Apr 2020
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Very few vaccines available at the time. In general, during the time of (1887) there was more health problems than any. Because effective control methods were unknown, more people were prone to infectious diseases. Life expectancy went up 20 percent during the 20th century thanks to vaccines (main reason) and antibiotics. It started to give the protection needed that otherwise would"ve killed people the influenza of 1918 lowered the trend of life expectancy. There is a huge gap of life expectancy from rich countries like canada to poor countries. Aids was a reason why life expectancy lowered. Biggest cause of death in third world countries is hiv, tuberculosis and malaria. There is not an acceptable coverage of therapy in low- and middle-income countries. Many people contributed for aid such as bill and melinda gates and david cameron who pledged. Microbes have caused the most devastating epidemics in recent human history.
