【摘要】 作者发现,S₂菌苗,口服接种乳牛既未引起临床反应,又未导致流产和泌乳量减少。服苗后的SAT阳性反应,与文献上记载的19号菌苗在接种后维持阳性滴度1—2年相比较,它却在接种后6个月全部转为阴性,这对牛群布病检疫是有利的。应用淋巴细胞转化试验,作者发现,服苗组的淋巴细胞PHA转化率在1年内均比对照组高。更多还原

【Abstract】 The authors observe that cow which took swine Type 2 Brucella Vsccine not only didn’t cause any clinical symptom but didn’t miscarry and reduce milk. Camparing Swine Type 2 with S19 Bruc ella Vaccine, some paper reported that SAT (Serum Agglutinin Test) were positive for one to two years when the cows injected Sl9 Brucella Vaccine But when they took Swine Type 2 Brucella Vaccine, all of them were negative after six monthes. So it is advantage for checking cows Brucellosis. Using lymphocyte tronsformation test, the authors find that the test group tronsformational rate of Lpmphocyte Cell PHA is high level then natural group for one year.更多还原