“Is herpes cold sores an infectious disease?”

Yes, *herpes simplex* is a virus that causes common "cold sores" and unrestricted contact with open sores is how it is easily spread. There are some antiviral over-the-counter ointments which can be applied 3-4 times a day to reduce the chances of spread to others and to other areas of the infected individual, like the eyes or genitals. Touching the sores is discouraged and after applying the ointments, thorough hand washing is advised. If you have trouble locating the ointments, just ask the pharmacist at your pharmacy and they can assist you.

Dwight E. Cochran, D.V.M., MS

Cold sores are caused by Herper Simplex I virus. It is spread by direct contact, so your husband should avoid kissing anyone when there are visible lesions. Virus is present in 5% of infected people even when no lesions are visible so he should always be cautious.

People contract HSV-1 by touching infected saliva, mucous membranes, or skin. Because the virus is highly contagious, a majority of the population is infected by at least one herpes subtype of HSV-1 before adulthood. The chances of contracting herpes without an active lesion is much much less likely.

Unless the sores, or fluid from the sores, comes into contact with your child's mucous membranes, the risk of transmission is very low. Cold sores are caused by Herpes Simplex type 1 virus. Most transmissions are through direct mucous membrane to mucous membrane contact, such as through kissing.

The herpes simplex virus (HSV-1) is a contagious virus that can be passed from person to person through DIRECT contact. Children will often contract HSV-1 from early contact with an infected adult.