COVID-19

May 2025

• May 21, 2025ExplainersPublic Health: Advancing Population Health InitiativesPublic health is the science of protecting and improving health at the population level. From John Snow's cholera map to COVID-19 vaccines, explore...15 MIN8.2k

April 2025

• Apr 4, 2025ExplainersUnderstanding Long COVID: Symptoms and Ongoing ResearchLong COVID affects an estimated 10-30% of COVID-infected individuals with symptoms lasting months.20 MIN4.6k

August 2024

• Aug 3, 2024ExplainersEpidemiology: Understanding Disease Spread and ImpactEpidemiology is the science of how diseases spread, who gets them, and why. Learn about John Snow's cholera map, study designs, the Bradford Hill...18 MIN7.7k