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H Habel

Publications and source records attributed to H Habel.

5 recordsLinked to original sources
PubMed1991

[The effect of Federal Public Health Service guidelines on air, surface and floor germ count in a general surgery and an orthopedic operating room].

In a prospective study the environmental contamination in an old and a new operating theatre was investigated. The old operating rooms were constructed in 1936 whereas the new rooms were built in 1986. The study was conducted in surgical and orthopedic surgical operating rooms. There was a slight increase in floor as well as in surface contamination in the new operating rooms. On the other hand there was a slight decrease in the airborne microorganisms in the orthopedic surgery and nearly identical colony counts in the general surgery operating rooms. All the differences were statistically not significant. The spectrum of microorganisms and the occurrence of Staphylococcus aureus in the old and the new operating rooms showed no difference.

Air Microbiology↗
PubMed1985

Specific anti-Bordetella pertussis activities in human blood examined by enzyme-linked immunoassay and biological assay.

Enzyme-linked immunoassays have been employed in this work to measure antibodies against either pertussigen or filamentous hemagglutinin, using a urease-conjugated second antibody system. Pertussigen and filamentous hemagglutinin were obtained from the supernatants of Bordetella pertussis cultures by chromatographic procedures, and were shown to be essentially free of other proteins. Further checks have established the specificity of the enzyme-linked immunoassay-systems. Anti-pertussigen and anti-filamentous hemagglutinin antibody titers, in a pilot study of sera from normal adults, showed little correlation with the donors' pertussis contact, infection or vaccination histories. Nevertheless, the titers did correlate with the ability of the sera to neutralize the biological actions of pertussigen in mice and the haemagglutinating activity of filamentous haemagglutinin, respectively. Antibody titers of sera from patients with suspected or confirmed pertussis infection fell within the range covered by sera from normal adults. Sera from unvaccinated children (less than two months old) also showed some anti-pertussis activity that was probably maternal in origin. Further selected adult plasma samples have been compared for anti-pertussis activity by enzyme-linked immunoassays and agglutination. These samples also have been evaluated for their abilities to protect mice passively against intra-nasal and intra-cerebral challenge with Bordetella pertussis.

Adult↗