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KMID : 0376219750120020425
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Chonnam Medical Journal
1975 Volume.12 No. 2 p.425 ~ p.432
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Studies of the population of Air-borne Fungi in the Hospital
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Abstract
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The air-borne fungi are usually considered to be as non-pathogenic and saprophytic organisms. However, those can be causative factors,of certain allergic diseases, and produce mycotoxic diseases such as caused by aflatoxin B1, or opportunistic infections, since various kinds of antitumor agents and adrenocorticosteroids have been introduced to therapeutics, and those who are affected some malignant tumors or metabolic anormalous diseases. As the first step toward understandin: and controlling these diseases, the studies on the population of air-borne fungi see to be necessary.
Authors studied the fluctuations of population of air-borne fungi at month intervals from June through September and at various times of the day at differeni places in the hospital, and the results obtained were aS follows:
1. Identified fungi species and percentage of colony counts of each species were
Hormodendrum sp. (38%), Aspergillus sp. (23%), Penicillium sp. (14%),
Alternaria (10%), Rhodotorula (1.8%), Rhizopus (0.7%), Monilia sp. (0.5%), Mucor (0.1%), and ether fifteen unknown species (11%) in decreasing
order of frequency.
2. The monthly fluctuations of number of cultured colonies of four major air-borne fungi (Hormodendrum, Aspergillus, Penicillium, and Alternaria) were 649 in June, 105 in July, 372 in August, and 431 in September.
3. It was suggested that there might be a relationship between the humidity and the population of air-borne fungi, because the abrupt drop in July seemed to be related to high level of humidity (86.8%).
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