This is a<unk> , briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines. In addition to specific year/period-related events, there's the seasonal flu that kills between 250,000 and 500,000 people every year, and has claimed between 340 million and 1 billion human lives throughout history.
Timeline of influenza
United States influenza statistics by flu season
Epidemiology of measles
Timeline of HIV/AIDS
Timeline of the SARS-CoV-2 Omicron variant
Vaccine vial monitor
HIV disease progression rates
Pandemic severity index