The kidneys may be small, but they do big work, filtering waste, balancing fluids, and helping control blood pressure. While many people focus on liver or heart health, the kidneys get ignored ...

Amy Dockser Marcus is a health and science reporter for The Wall Street Journal based in Boston. Her stories depict how scientific advances are transforming society and raising bioethical questions.

H5N1 influenza has now been detected in pigs. This was something virologists had been worrying about ever since this highly pathogenic strain of bird flu started its rapid global spread in 2020. But ...