What Causes Fever blisters?
Fever blisters are caused by a contagious virus called herpes simplex. Them are two types of herpes simplex virus. Type 1 usually causes oral herpes, or fever blisters.
Type 2 usually causes genital herpes. Although both type 1 and type 2 viruses can infect oral tissues, more than 95 percent of recurrent fever blister outbreaks are caused by the type 1 virus.
Herpes simplex virus is highly contagious when fever blisters are present, and the virus frequently is spread by kissing. Children often become infected by contact with parents, siblings or other close relatives who have fever blisters.
Type 2 usually causes genital herpes. Although both type 1 and type 2 viruses can infect oral tissues, more than 95 percent of recurrent fever blister outbreaks are caused by the type 1 virus.
Herpes simplex virus is highly contagious when fever blisters are present, and the virus frequently is spread by kissing. Children often become infected by contact with parents, siblings or other close relatives who have fever blisters.
posted by Unknown at 2:17 AM
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