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 language | English |
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Pages (from-to) | 621-631 |
Number of pages | 11 |
Journal | Avian Pathology |
Volume | 21 |
Issue number | 4 |
DOIs | |
State | Published - 1 Dec 1992 |