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.

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.

Skin cancer is the most common type of cancer, but it's highly treatable.

What can you do about varicose veins?

Some headaches you can handle by yourself at home, while others require a doctor’s help. How can you know which is which? Check out this handy infographic.

Doctors and care teams have adjusted the way they utilize telehealth for patient appointments during the pandemic.

Consider these reasons to become an organ donor.

Inability to focus. Forgetfulness. Frustration with time management and organization. These are just a few of the symptoms linked with attention deficit hyperactivity disorder (ADHD).

Cough, cough, sneeze, sniffle. If you have allergies, you know the routine. But with COVID-19 symptoms also being very similar, you're probably wondering how to distinguish between the two. One of our allergy specialists discusses the differences and when to seek medical advice.

This is a social media post written by Daniel W. Johnson, MD, Nebraska Medicine critical care anesthesiologist. It is shared here with his permission.