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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.
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.
COVID-19: Long-term effects
Learn about the possible long-term effects of COVID-19.
CT scan
This imaging test helps detect internal injuries and disease by providing cross-sectional images of bones, blood vessels and soft tissues inside the body.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
Car seat safety: Avoid 9 common mistakes
Learn about common mistakes and find out what you need to do to keep your child safe on the road.
Car sickness in children: Can I prevent it?
Carefully planned pre-trip meals, air ventilation and distractions might help prevent car sickness in children.
Carbon monoxide poisoning
This gas has no color, odor or taste. It can be deadly. Learn how to prevent it.
Cardiomyopathy
This disease of the heart muscle makes it harder for the heart to pump blood to the rest of the body. Learn the different types and how they're treated.
Cavernous malformations
Understand the symptoms that may occur when blood vessels in the brain or spinal cord are tightly packed and contain slow-moving blood.
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