12 Diseases That Can Spread Through Kissing

For most people, a kiss is a familiar gesture of affection, greeting, or intimacy. But, because kissing often involves close contact and the exchange of saliva, it can also provide a route for certain infectious diseases to spread from one person to another. The risk varies widely depending on the disease, the mode of transmission, and individual circumstances, and many infections associated with kissing are also spread through other forms of close contact. The 12...