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Microbiological Flora of Human Subjects Under Simulated Space Environments

Report Number: AMRL TR 66-171
Author: Riely, Phyllis E.
Author: Shorenstein, Dian J.
Corporate Author: Fairchild Hiller Corporation
Laboratory: Aerospace Medical Research Laboratories
Date of Publication: 1966-10
Pages: 228
Contract: AF 33(615)-3255
Project: 7164
Task: 716405
AD Number: AD0651436

Aerobic and anaerobic microbiological studies were conducted on selected body areas of 11 human male subjects living under controlled conditions. Similar studies also were made on specific objects located in their environmental area. The data from these studies have provided information on microbial dynamics and bacterial levels, as influenced by various personal hygiene procedures and confinement. Microbial studies (both aerobic and anaerobic) of the fecal flora showed the influence of defined space-type diets. A statistical treatment of the data has helped to direct the formulation of personal hygiene procedures that should keep the bacterial populations within a numerically normal range for an individual. This analysis confirmed the importance of the groin and glans penis, as well as the axilla, as the most significant numerical indicator areas of microbial buildup. A detailed study of the predominating fecal anaerobes was conducted to classify these bacteria into recognized generic groups.

RAF Centre of Aviation Medicine
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