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How Were the COVID-19 Vaccines Made So Fast? Vaccines for COVID-19 are now widely available. In the past, it’s taken many years to create a vaccine that’s ready for public use. But over decades of creating vaccines, research groups and public health agencies have been making the

Eye Cancer: Intraocular Melanoma What is intraocular melanoma? Melanoma is a serious kind of skin cancer. This cancer starts in cells called melanocytes. These cells make the pigment that colors your skin. You also have melanocytes in your eyes. When these cells become cancer, it

Back Pain in Pregnancy Why is back pain so common in pregnancy? One of the most common complaints during pregnancy is back pain. In fact, it's estimated that more than half of all pregnant people have some degree of back discomfort. Most back pain is related to the physical

Dementia and a Healthy Diet: Tips for Caregivers Eating regular, nutritious meals can be a challenge for people with dementia. They may forget to eat or get distracted during meals. Or they may have trouble chewing and swallowing. But as a family caregiver, you can make a big

Urethral Stricture Disease What is urethral stricture disease? Gendered terms are used here to talk about anatomy and health risk. Please use this information in a way that works best for you and your provider as you talk about your care. The urethra is the tube that carries

COVID-19 What is COVID-19? COVID-19 is an infectious disease that most often causes a respiratory illness. You may hear it called COVID or coronavirus disease 2019. It's caused by a virus called SARS-CoV-2. There are many types of coronaviruses. They are a common cause of

Anorexia Nervosa What is anorexia nervosa? Anorexia nervosa is also called anorexia. It is a serious medical illness It's not a lifestyle choice. This eating disorder makes you obsess about your weight and food. If you have this problem, you may have a distorted body image. You

Pregnancy and Heartburn Chances are good that you’re one of many pregnant people who experience the churning and burning of heartburn or acid indigestion. It typically hits somewhere in the second or third trimester, and it can be miserable. Heartburn doesn’t really mean your

Immune System Disorders Your immune system is your body’s defense against infections and other harmful invaders. Without it, you would constantly get sick from germs, such as bacteria or viruses. Your immune system is made up of special cells, tissues, and organs that work

Insomnia What is insomnia? You've likely had nights when you couldn't fall asleep, no matter how desperately you tried. When you can't sleep, the ticking of the clock only reminds you of your exhaustion and the endless hours until morning. And perhaps you finally drop off around