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The leading causes of death in the United States have changed significantly from 1900 to the present. In 1900, the leading causes of death were ** However, there have been huge decreases in death rates, and they are no longer among the leading causes of death in the United States in 2024. Meanwhile, other diseases, such as ****, have seen increased death rates in recent years.

Vaccinations

One major factor contributing to the decrease in death rates for many diseases since the year 1900 is the introduction of vaccinations. The decrease seen in the rates of death due to pneumonia and influenza is a prime example of this. In 1900, pneumonia and influenza were the leading causes of death, with around *** deaths per 100,000 population. However, in 2023, pneumonia and influenza were not even among the ten leading causes of death.

Cancer

One disease that has seen a large increase in death rates since 1900 is cancer. Cancer currently accounts for almost ** percent of all deaths in the United States, with death rates among men higher than those for women. The deadliest form of cancer for both men and women is cancer of the lung and bronchus. Some of the most common avoidable risk factors for cancer include smoking, drinking alcohol, sun exposure, and obesity.