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How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
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How to treat a piercing site infection
Learn what you can do at home if your ear new piercing becomes infected.
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Bipolar disorder in children: Is it possible?
Bipolar disorder in children and teenagers is possible. Finding it early and treating it can help.
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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).
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Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
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