Chickenpox attributable to a vaccine virus contracted from a vaccinee with zoster

Pediatrics. 2000 Aug;106(2):E28. doi: 10.1542/peds.106.2.e28.


Five months after 2 siblings were immunized with varicella vaccine, 1 developed zoster. Two weeks later the second sibling got a mild case of chicken pox. Virus isolated from the latter was found to be vaccine type. Thus, the vaccine strain was transmitted from the vaccinee with zoster to his sibling. Vaccinees who later develop zoster must be considered contagious. varicella-zoster, zoster, vaccine, transmission, rash, PstI.

Publication types

  • Case Reports

MeSH terms

  • Chickenpox / diagnosis
  • Chickenpox / prevention & control
  • Chickenpox / transmission*
  • Chickenpox / virology
  • Chickenpox Vaccine / adverse effects*
  • Child, Preschool
  • Disease Transmission, Infectious*
  • Humans
  • Male
  • Nuclear Family


  • Chickenpox Vaccine