As the United States exceeds 5 million reported coronavirus cases — the world’s first country to do so — epidemiologists have pinpointed what helped to set the country on this path.

Top 10 ways to get up-to-date information on fires and air quality.

Sending a “selfie” to the doctor could be a cheap and simple way of detecting heart disease, according to the authors of a new study published today (Friday) in the European Heart Journal.

Over the course of the coronavirus epidemic, COVID-19 outbreaks have hit communities across the United States.

A new Oregon State University study suggests that firefighters are more likely to be exposed to potentially harmful chemicals while on duty compared to off duty.

Nearly half of all COVID-19 deaths in the United States have occurred among nursing home residents, whose age, chronic medical conditions, and congregate living quarters place them and their caregivers at high risk of contracting the disease.

Scientists at Scripps Research have discovered a molecule that can activate a natural immune-boosting protein called STING.

Atmospheric scientists have analyzed how the February near-total shutdown of mobility affected the air over China. Results show a striking drop in nitrogen oxides, a gas that comes mainly from tailpipes and is one component of smog.

For nearly 50 years, a statistical omission tantamount to data falsification sat undiscovered in a critical study at the heart of regulating one of the most controversial and widely used pesticides in America.

Social inequalities, specifically racism and classism, are impacting the biodiversity, evolutionary shifts and ecological health of plants and animals in our cities.