Marek's disease vaccines cause temporary B-lymphocyte dysfunction and reduced resistance to infection in chicks

A. Friedman, Edna Shalem-Meilin, E. D. Heller

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

One-day-old chicks were vaccinated with one of the commercially used vaccines [herpes virus of turkeys (HVT), bivalent HVT+SB1 or Rispens] and the immune response and resistance to infection evaluated. A temporary depletion of B-lymphocyte activity of varying intensity was found, as demonstrated by a diminished response to a B-lymphocyte-specific mitogen in vitro, and by decreased antibody production to BSA in vivo. Of the three vaccines tested, the bivalent vaccine (HVT+SB1) and Rispens were the most damaging. A temporary decreased resistance to pathogenic E coli infection in vaccinated chicks was observed.

Original languageEnglish
Pages (from-to)621-631
Number of pages11
JournalAvian Pathology
Volume21
Issue number4
DOIs
StatePublished - 1 Dec 1992

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