Nutrition basics
Learning Center
Encephalitis
Learn about this potentially life-threatening condition associated with inflammation of the brain and what you can do to prevent the condition.
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 vs. flu: Similarities and differences
Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about vitamin D and coronavirus disease 2019 (COVID-19).
Osteoporosis treatment: Medications can help
Find out more about your options for bone-preserving drugs, including how often you need to take them and what side effects you might expect.
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