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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
The human body produces and destroys 15 million blood cells every second.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.