South Carolina has been grappling with a fast-moving outbreak that has infected hundreds, mostly young people under the age of 20.
The rise in wildfires globally brings into sharp focus how such disasters increasingly threaten our health and security.
Respiratory virus activity across the United States has climbed to high levels, driven by increases in influenza and respiratory syncytial virus (RSV) activity
Weekly US Influenza Surveillance Report: Key Updates for Week 52, ending December 27, 2025. Key points
Seasonal influenza activity is elevated and continues to increase across the country.
Wildfire smoke is an emerging nationwide crisis for the United States. Supercharged by climate change, blazes are swelling into monsters that consume vast landscapes and entire towns.
In cold temperatures, vehicles idle more, have high cold-start emissions including greenhouse gases, and have less effective exhaust filtration systems, which can cause up to ten-fold more harmful vehicular emissions.
