Strep throat is a contagious illness that is characterized by a fever, sore throat, swollen lymph nodes, and red spots on the roof of your mouth.

Mono is highly contagious when you have symptoms, but it can also be contagious long before and after the signs of sickness are present.

Linda Yancey, MD, is a board-certified physician in infectious disease and internal medicine with over two decades of experience practicing in Texas. She completed her residency at Mayo Clinic in ...

About one in 20 people experience bronchitis every year, despite it being a respiratory infection no one wants. Its most common symptoms include wheezing, chest tightness, low fever, fatigue, ...

Give your loved ones the gift of spending time together this holiday season, not a highly contagious virus sometimes referred to as the stomach flu. An uptick in norovirus cases and outbreaks can be ...