Varicella-zoster virus: infection, control, and prevention

Varicella-zoster virus is a herpes virus that produces a primary infection, chickenpox, manifested by a vesicular eruption and is considered one of the common childhood infectious diseases. After the initial infection the virus becomes latent, then when activated it is manifested as herpes zoster, commonly known as shingles. This highly communicable human disease is associated with serious morbidity and significant mortality, particularly among the immunocompromised. When introduced in the hospital, significant disruptions occur and serious sequelae may results. Recently, a live virus varicella vaccine was approved by the Food and Drug Administration in the United States. Studies have shown the vaccine to be safe and effective. Widespread use of this vaccine may be beneficial in reducing the opportunities for varicella-zoster virus introductions in health care settings.