Journal of Hygiene最新文献_第7页

Comparison of the brucellin skin test with the lymphocyte transformation test in bovine brucellosis. 牛布鲁氏菌病布鲁氏菌素皮肤试验与淋巴细胞转化试验的比较。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s002217240006616x

C C Chukwu

{"title":"Comparison of the brucellin skin test with the lymphocyte transformation test in bovine brucellosis.","authors":"C C Chukwu","doi":"10.1017/s002217240006616x","DOIUrl":"https://doi.org/10.1017/s002217240006616x","url":null,"abstract":"The brucellin skin test and the lymphocyte transformation test were compared in heifers infected with virulent Brucella abortus strain 544, heifers vaccinated against brucellosis and unexposed cattle. Results of the in vitro lymphocyte transformation test were consistently positive for all 9 Brucella-infected heifers while the skin test was consistently positive for 6 of the 9 heifers. In 7 heifers repeatedly vaccinated with B. abortus strain-19 vaccine the in vitro test classified 3 animals as positive whereas the skin test identified all the animals as infected during most of the experimental period. Four heifers injected with a single dose of B. abortus strain 19 were consistently negative to the lymphocyte transformation test while the skin test classified all the animals as infected during most of the experimental period. The skin test gave strong reactions indicative of Brucella infection in heifers vaccinated with 'Duphavac' and 'Abortox' vaccines whereas the lymphocyte transformation test was consistently negative with these vaccines. The two tests were negative in unexposed cattle. It was concluded that the in vitro test correlated better with Brucella isolation than the in vivo test did and that the lack of agreement between the results of the two tests is likely to be due to the different antigens used in the assays.","PeriodicalId":15931,"journal":{"name":"Journal of Hygiene","volume":"96 3","pages":"403-13"},"PeriodicalIF":0.0,"publicationDate":"1986-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/s002217240006616x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14853409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Field trials of flocoumafen against warfarin-resistant infestations of the Norway rat (Rattus norvegicus Berk.). 氟虫芬防治挪威大鼠(褐家鼠)华法林抗性的田间试验。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s0022172400066250

A P Buckle

引用次数: 22

Urinary-tract infection by Mycoplasma pulmonis in mice and its wider implications. 小鼠肺支原体尿路感染及其广泛意义。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s0022172400066213

D Taylor-Robinson, P M Furr

{"title":"Urinary-tract infection by Mycoplasma pulmonis in mice and its wider implications.","authors":"D Taylor-Robinson, P M Furr","doi":"10.1017/s0022172400066213","DOIUrl":"https://doi.org/10.1017/s0022172400066213","url":null,"abstract":"Young adult mice were inoculated intravenously with strains JB or Peter C of Mycoplasma pulmonis. A few were inoculated intranasally with strain JB. This strain but not Peter C was isolated for 50 days or more from the urines of more than half of the mice. Those of strains TO, C3H and CBA, but not CFLP, were susceptible. Recovery of mycoplasmas was intermittent and sometimes the numbers isolated varied within individual mice and between mice of a particular strain, ranging from 5 X 10(1) to greater than or equal to 5 X 10(7) colour-changing units/ml. Fifty serial passes of M. pulmonis, strain JB, in mycoplasmal medium resulted in attenuation, the organisms after inoculation of TO mice not being recovered from the urine and excretion not being stimulated by treating the mice with progesterone. At autopsy, the organisms of early passage were usually but not invariably isolated from the kidneys of mice that had been urinary excretors. About half of the latter had no renal histopathological changes. The others had usually minimal renal perivascular lymphocytic infiltrates but occasionally more widespread inflammatory changes. The findings may have relevance to the spread of mycoplasmal infection within mouse colonies and suggest that an association between such infection and nephritis in other species, including man, should be sought more closely.","PeriodicalId":15931,"journal":{"name":"Journal of Hygiene","volume":"96 3","pages":"439-46"},"PeriodicalIF":0.0,"publicationDate":"1986-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/s0022172400066213","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14853412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Geographic distribution of restriction types of Mycobacterium bovis isolates from brush-tailed possums (Trichosurus vulpecula) in New Zealand. 新西兰刷尾负鼠牛分枝杆菌限制性型分离株的地理分布。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s0022172400066201

D M Collins, G W De Lisle, D M Gabric

{"title":"Geographic distribution of restriction types of Mycobacterium bovis isolates from brush-tailed possums (Trichosurus vulpecula) in New Zealand.","authors":"D M Collins, G W De Lisle, D M Gabric","doi":"10.1017/s0022172400066201","DOIUrl":"https://doi.org/10.1017/s0022172400066201","url":null,"abstract":"DNA restriction endonuclease analysis was used for intra-specific typing of Mycobacterium bovis isolates from 83 brush-tailed possums (Trichosurus vulpecula) obtained between 1982 and 1984 from the three major regions in New Zealand with endemic bovine tuberculosis. All the isolates were found to be genetically very similar. Differentiation of the isolates into 33 restriction types was achieved by using high-resolution electrophoresis and the combined results from separate digestions with the restriction enzymes Bst EII, Pvu II and Bcl I. The typing system was entirely reproducible. Isolates of the same type were usually found in adjacent localities and were always limited to one of the three major regions. In some cases, isolates of the same type were found in both 1982 and 1984. The phenotypic significance of the small genetic differences identified between different isolates is unknown. The typing system will be useful for monitoring the transmission of M. bovis to other species and the future spread of different M. bovis types through possum populations.","PeriodicalId":15931,"journal":{"name":"Journal of Hygiene","volume":"96 3","pages":"431-8"},"PeriodicalIF":0.0,"publicationDate":"1986-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/s0022172400066201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14148645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 66

Humoral response of pregnant sows to foot and mouth disease vaccination. 妊娠母猪对口蹄疫疫苗的体液反应。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s0022172400066304

M J Francis, L Black

引用次数: 9

Recovery of bluetongue virus serogroup from sera collected for a serological survey from apparently healthy cattle, from the Sudan. 从苏丹为进行血清学调查而收集的牛血清中恢复蓝舌病病毒血清组。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s002217240006633x

E M Abu Elzein

引用次数: 8

Detection of diphtheria toxin antibodies in human sera in New Zealand by ELISA. ELISA法检测新西兰人血清白喉毒素抗体。

Journal of Hygiene Pub Date : 1986-06-01 DOI: 10.1017/s0022172400066171

R C Lau