The effect of a live Mycoplasma gallisepticum vaccine on the horizontal transmission of this Mycoplasma species was quantified in an experimental animal transmission model in specific pathogen free White Layers. Two identical trials were performed, each consisting of two experimental groups and one control group. The experimental groups each consisted of 20 birds 21 weeks of age, which were housed following a pair-wise design.
View Article and Find Full Text PDFThe effect of an inactivated vaccine on the horizontal transmission of Mycoplasma gallisepticum was quantified in a transmission model. Twenty non-vaccinated and 20 vaccinated 23-week-old specific pathogen free hens were housed in pairs, while five individually housed hens acted as a negative control group. Each pair consisted of a challenged chicken (10(4) colony forming units intratracheally) and a non-challenged susceptible contact bird.
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