




Yale
New Haven Hospital
QISS
GB 325
New Haven, CT
06504 USA

Dr. Jeff Topal
688-4634

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Incubation period is usually 14-16 days; some cases occur as early
as 10 or as late as 21 days after exposure. An individual is most
contagious 1-2 days before the onset of the rash. However, the period
of infectivity can last as long as 6 days after the onset of lesions
and in immunocompromised patients throughout the period of eruption
of new lesions. |

Last
modified: October 2, 2002.



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