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D T BERMAN

Publications and source records attributed to D T BERMAN.

At least 19 recordsLinked to original sources
PubMed1965

TYPE-SPECIFIC ANTIGENS IN THE PSITTACOSIS-LYMPHOGRANULOMA VENEREUM GROUP OF ORGANISMS.

Fraser, C. E. Ovid (University of Wisconsin, Madison), and David T. Berman. Type-specific antigens in the psittacosis-lymphogranuloma venereum group of organisms. J. Bacteriol. 89:943-948. 1965.-Antigens of 14 strains of the psittacosis-lymphogranuloma venereum (PLV) group of organisms were prepared by treating purified particles with deoxycholate and trypsin. In complement-fixation tests of these antigens with the homologous and heterologous antisera, specific serotype differences were observed. Application of the method of specificity differences permitted placement of the 14 strains into 7 subgroups. The possible value of these techniques in immunology, epizootiology, and taxonomy of the PLV group is discussed.

Antigens↗
PubMed1962

Pathogenicity and immunogenicity of streptomycin-dependent mutants of Brucella.

Simon, Ellen M. (University of Wisconsin, Madison) and David T. Berman. Pathogenicity and immunogenicity of streptomycin-dependent mutants of Brucella. J. Bacteriol. 83:1347-1355. 1962.-Streptomycin-dependent (Sd) mutants of Brucella suis and B. abortus were avirulent for guinea pigs whether selected in the presence of streptomycin only or streptomycin and normal or immune serum. Administration of large quantities of streptomycin to guinea pigs increased the numbers of organisms which could be recovered, but did not cause the development of progressive infections. Vaccination with Sd mutants of B. abortus diminished the pathological response of guinea pigs infected with a large challenge dose of virulent B. abortus, but equal numbers of organisms were recovered from vaccinated animals and unvaccinated controls. Vaccination with Sd mutants of B. suis protected some guinea pigs from small challenge doses. Immunization by multiple injections or by one injection plus streptomycin was superior to a single inoculation of organisms.

Animals↗
PubMed1962

Genetic transduction with staphylophage.

Korman, Ruth Z. (Elmira College, Elmira, N.Y.) and David T. Berman. Genetic transduction with staphylophage. J. Bacteriol. 84:228-236. 1962.-Transduction by crude lysates obtained by ultraviolet-light induction of phage 53 lysogenic derivatives of Staphylococcus aureus NCTC 8511 has been confirmed. A defined medium and sugar-differential medium were developed, permitting demonstration of transmission of sugar-fermentation loci. The range of transmissible markers has been extended to include free-coagulase production as well as antibiotic-resistance markers. A rare class of heterogeneous streptomycin-resistant transformed clones was obtained. These were assumed to be heterogenotic.

Coagulase↗