1. Sore Throat. According to the U.S. Centers for Disease Control (CDC), strep throat is a prevalent type of sore throat that strikes children. However, itâs less common in adults. The painful, sore, red, and inflamed throat tissues that come with strep are due to an severe viral infection.
Approximately 400,000 people in the United States and 2.3 million people worldwide have MS â and thereâs one new U.S. diagnosis of MS every hour, according to the National Multiple Sclerosis Society.
1 Multiple sclerosis is more common in individuals of northern European descent. 2  Women are more than twice as likely to develop multiple sclerosis as men.  Multiple sclerosis usually affects people between the ages of 20 and 50 years, and the average age of onset is approximately 34 years.