Biomedical subjects

B W Powers

Publications and source records attributed to B W Powers.

3 recordsLinked to original sources

PubMed1983

Effects of disinfectants on Campylobacter jejuni.

Because of the increasing recognition that Campylobacter jejuni is an important enteric pathogen of humans, we studied the effects of widely used disinfectants on the viability of this organism. At an inoculum size of 10(3) to 10(4) CFU/ml, 1.25 mg of hypochlorite per liter killed three strains within 1 min. At an inoculum size of 10(6) to 10(7) CFU/ml, 5 mg of hypochlorite per liter killed three strains within 15 min. Killing of similar concentrations of C. jejuni and Escherichia coli by hypochlorite was approximately the same. At the high inoculum, 0.15% phenolic compound, 10 mg of iodophor per liter, 1:50,000 quaternary ammonium compound, 70% ethyl alcohol, and 0.125% glutaraldehyde killed all three strains within 1 min. These studies demonstrate that, under the conditions we tested (pH 7.0; 24 to 26 degrees C), the recommended standard concentrations of disinfecting agents are adequate to destroy C. jejuni.

Campylobacter↗

PubMed1979

Campylobacter enteritis associated with unpasteurized milk.

Campylobacter fetus ss. jejuni has recently been recognized as a human enteric pathogen. Laboratory isolation has been hindered by its fastidious nature. Methods for recovery of this organism from stool culture and a specific serologic test are described. An outbreak is reported in which three members of the same family became simultaneously ill with fever, severe abdominal cramps and diarrhea. C. fetus ss. jejuni was recovered from stool specimens from all three. A fourfold increase in serum immunoglobulin G (IgG) titer to this organism was demonstrated in each patient. All three patients had been consuming unpasteurized milk from a cow whose feces were infected with C. fetus ss. jejuni.

Adult↗

PubMed1978

Campylobacter enteritis associated with canine infection.

Campylobacter fetus ss. jejuni has recently been recognised as a human enteric pathogen. Five cases of campylobacter enteritis are described. All five patients had abdominal pain and diarrhoea. Two of the five patients had bloody diarrhoea and relapses. All the patients had been in contact with young dogs which had had diarrhoea. Campylobacter fetus ss. jejuni was isolated from these dogs or from their litter-mates. Canine infection with Campylobacter fetus ss. jejuni may be an important source of infection causing diarrhoea in man.

Adolescent↗