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Math Biosci ; 182(2): 113-26, 2003 Apr.
Article in English | MEDLINE | ID: mdl-12591619

ABSTRACT

Varicella-zoster virus (VZV) is a herpesvirus which is the known agent for causing varicella (chickenpox) in its initial manifestation and zoster (shingles) in a reactivated state. The standard SEIR compartmental model is modified to include the cycle of shingles acquisition, recovery, and possible reacquisition. The basic reproduction number R(0) shows the influence of the zoster cycle and how shingles can be important in maintaining VZV in populations. The model has the typical threshold behavior in the sense that when R(0)1, the virus persists over time and so chickenpox and shingles remain endemic.


Subject(s)
Chickenpox/transmission , Epidemiologic Methods , Herpes Zoster/transmission , Herpesvirus 3, Human , Models, Biological , Chickenpox/epidemiology , Disease Transmission, Infectious , Herpes Zoster/epidemiology , Humans , Population Dynamics
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