NCIt definition : A contagious childhood disorder caused by the varicella zoster virus. It is transmitted
via respiratory secretions and contact with chickenpox blister contents. It presents
with a vesicular skin rash, usually associated with fever, headache, and myalgias.
The pruritic fluid-filled vesicles occur 10-21 days after exposure and last for 3-4
days. An additional 3-4 days of malaise follows before the affected individual feels
better. An individual is contagious 1-2 days prior to the appearance of the blisters
until all blisters are crusted over. Generally, healthy individuals recover without
complications.;
Alternative definition : NICHD: Varicella zoster virus that is transmitted via respiratory secretions and vesicular
skin lesions; clinical manifestations are fever and pruritic, vesicular skin rash
ten to twenty-one days after exposure. Clinical complications (e.g., lung, liver and
CNS) can occur, especially in immunocompromised individuals.;