Researchers race to put hydroxychloroquine to the test in a large study.

Explaining Chagas disease through the stories of patients in Latin America.

Chronic diseases like cancer and diabetes were once the preserve of wealthy countries but are now increasingly common in lower-income countries too as populations age and lifestyles change.

Most people have never heard of spinal muscular atrophy (SMA), a rare genetic disease that affects approximately 1 in 6,000 babies born worldwide each year. Innovative research may produce treatments for patients suffering from SMA and other rare diseases.