Comparative enumeration of lipophilic and nonlipophilic cutaneous diphtheroids and cocci.

Applied Microbiology
R F Smith

Abstract

Swabbing skin to collect bacteria for enumeration revealed that a single washing or rinsing of the swab in buffer removed between 90 and 95% of the bacteria collected. Further removal of the remaining bacteria from the initial swab by repeated washings of the swab produced plate counts that showed nearly proportional decreases in the numbers and types of bacteria retained or eluted from the swab. None of the commonly isolated cutaneous bacteria was retained or eluted from the single swab in numbers that misrepresented measurement of their proportions present in the sample. Populations of nonlipophilic bacteria on skin when present were mainly gram-positive catalase-producing cocci. Diphtheroids when present were chiefly lipophilic. Media containing furoxone were selective for cutaneous diphtheroids. The concentration of furoxone used affected isolation and enumeration of the diphtheroids. Lipophilic diphtheroids from the stratum corneum were basically aerobic and anaerobic incubation reduced or eliminated this group from enumeration studies. Lipophilic furoxone-resistant aerobic diphtheroids from several areas, particularly the nasal passages, occurred in numbers inversely proportional to the numbers of staphylococci for period...Continue Reading

References

Mar 1, 1969·Journal of General Microbiology·R F Smith
Aug 1, 1969·Applied Microbiology·R R Marples, P Williamson
Dec 1, 1965·The Journal of Investigative Dermatology·P Williamson, A M Kligman
Aug 1, 1969·Journal of General Microbiology·R F Smith
Apr 1, 1969·The British Journal of Dermatology·D A Somerville
Mar 1, 1963·Journal of General Microbiology·A C BAIRD-PARKER
Apr 1, 1949·The Journal of Pathology and Bacteriology·M R POLLOCKE E D MANSON

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Citations

Jan 1, 1973·Applied Microbiology·R F SmithJ H Jorgensen
Apr 1, 1971·Applied Microbiology·R F Smith
Nov 1, 1976·Journal of Clinical Microbiology·J C Curry, G E Borovian

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