Hand hygiene is our top priority and the number one intervention to prevent healthcare-associated infections and transmission of organisms and diseases. At the Johns Hopkins Hospital, we perform ...

Good hand hygiene – washing hands or using a hand sanitizing gel – is the best way to prevent the spread of germs. Health care workers should wash their hands before and after caring for each patient.

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...