title: In vitro stimulation of blood lymphocytes by phytohaemagglutinin during the development of Marek's disease.
abstract: The in vitro responsiveness to phytohaemagglutinin of peripheral blood lymphocytes taken from chickens during the development of Marek's disease was studied. There was a transient depression of stimulation in the early stages of the disease, particularly at 1 week after infection, but depression of responsiveness was not observed later. The discrepancies between these results and other published results are discussed.
authors.affiliation: Houghton Poultry Research Station, Houghton Huntingdon, Cambs., PE 2DA, United Kingdom.
authors.forename: P C
authors.initials: PC
authors.lastname: Powell