pneumonia
In 2019, pneumonia and influenza were the ninth leading cause of death in Los Angeles County, accounting for 1,728 deaths that year.
Pneumonia and influenza (flu) are often combined in official mortality statistics and public health reporting. This practice is standard because the two diseases are closely linked: influenza infections can lead to secondary pneumonia, and distinguishing between deaths caused directly by influenza and those by pneumonia is often difficult.