Herpes Simplex Virus (HSV):
A parent's guide for infants and babies

Herpes simplex 1 and herpes simplex 2 viruses are the viruses that are responsible for herpes lesions.  Although herpes simplex virus 1 more commonly causes skin or mouth sores and herpes simplex virus 2 more commonly causes the sores associated with genital herpes, both are highly contagious and could appear anywhere on the body. 

The first outbreak of sores on the skin or mouth is called primary herpes, and healing occurs in about a week.  This outbreak, called primary herpes, is usually more severe then the recurrent flare-ups that may follow.  Typically before an outbreak, the skin where the lesions occur will feel a burning or tingling sensation.

The herpes simplex viruses are easily transmitted through direct contact with the lesions of another infected individual; however, the virus can also spread in the absence of symptoms or visible lesions.  Affected individuals carry the virus for the rest of their lives. 

In newborn infants, infection with the herpes virus can potentially be life threatening, and symptoms almost always accompany infection. The virus enters the brain and spinal fluid and can cause seizures and even death.