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Miscarriage
Learn what might cause the loss of a pregnancy, the symptoms and how to cope.
Food poisoning
Learn more about foodborne illnesses that can cause upset stomach, vomiting and diarrhea within hours of eating contaminated food.
Seizures
Learn about the different types of seizures and what causes them. Also find out what to do if you see someone having a seizure.
Osteosarcoma
Learn about the symptoms and causes of this bone cancer that happens most often in children. Find out about treatments, including limb-sparing operations.
Sunburn
Learn more about how UV rays harm your skin and what you can do for symptom sunburn relief and how to protect yourself from sun exposure.
COVID-19 diagnostic testing
Find out how COVID-19 diagnostic testing is done to learn if you're currently infected with SARS-CoV-2, the virus that causes coronavirus disease 2019.
COVID-19, cold, allergies and the flu: What are the differences?
Knowing if you have COVID-19, a cold, the flu or seasonal allergies isn't easy. Find out about the differences between these illnesses.
Patent ductus arteriosus (PDA)
Learn about symptoms, causes and treatment of this common — and treatable — heart problem that occurs shortly after birth.
Hypoglycemia
Low blood sugar can cause uncomfortable symptoms, such as dizziness and confusion, and can quickly become serious if left untreated.
Bone cancer
Bone cancer most commonly affects the long bones in the arms and legs. Some types happen mostly in children, while others affect mostly adults.
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