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Individual milk samples of 383 cows were examined in the ABR test. The same samples were also tested individually and collectively using the ELISA test. The test was used noting to what degree the mammary gland was irritated. The ABR gave positive or doubtful results in 18 cows. The ELISA was used to examine 47 individual samples (among which were all positive or doubtful), 76 collective samples from...
Антигенное средство между Br. abortus и Fr. tularensis вызывает появление агглютининов реагирующих перекрестно с этими микроорганизмами. Это подтверждено в исследовании 35 сывороток коров, зараженных бруцеллезом — в 30 из них (85,7%) отмечено низкие неспецифические реакции в ОА с антигеном Francisella. Они редуцировались в ОМЕ, что показывает, что они были вызваны IgM. Редукция IgM. не достаточна,...
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