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COVID-19 vaccines, irregular periods and spike protein shedding
Are irregular periods a side effect of COVID-19 vaccines? Can "vaccine shedding" impact unvaccinated people? Find out here.
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6 symptoms may point to this common disorder
Muscle tension, fatigue, difficulty sleeping, restlessness, irritability and difficulty concentrating. Can you guess what having these six symptoms might mean?
Conditions and Services Worried about getting COVID-19 from the vaccine? Watch this

Worried about getting COVID-19 from the vaccine? Watch this
A video of health care professionals talking about how they feel about the COVID-19 vaccines.
Conditions and Services Man grabbing his side

I think I broke my rib. Now what?
Everyone has 12 pairs of ribs wrapped around their chest to protect vital organs. If you think you've broken or fractured a rib, you should see a doctor for evaluation.
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Help broken ribs heal faster – how to know if you're healing normally
What should the healing process look like? How do you know if the pain has been going on for too long? Here's some advice.
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How are stroke and heart attack related?
Learn about how stroke and heart attacks are related.
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Why vaccination is our best shot against variants
Herd immunity is still a long way off. Find out what it will take to prevent against potentially more infectious variants.
Conditions and Services picture of a patient waiting for her COVID-19 vaccine

How the Johnson & Johnson COVID-19 vaccine works
The Johnson & Johnson (Janssen) vaccine uses a slightly different approach than the previous two COVID-19 (Pfizer and Moderna) vaccines.
Conditions and Services Graphic of a vaccine over a percent sign

COVID-19 vaccine efficacy explained
What does efficacy even mean? Is it the same thing as effectiveness? (Spoiler: Not quite.) Also in this article, compare efficacy rates for the three authorized COVID-19 vaccines.
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Post-COVID syndrome: Common symptoms and how to know if you have it
If you’re still sick weeks after an initial COVID-19 infection, you’re not alone. “Post-COVID” is affecting many COVID-19 survivors. Find out common post-COVID symptoms and how to tell if you’re contagious.
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