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zoonoses and communicable diseases common to ... - PAHO/WHO

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ASPERGILLOSIS 305Mason, R.W., M. Gauhwin. Adiaspiromycosis in South Australian hairy-nosed wombats(Lasiorhinus latifrons). J Wildl Dis 18:3–8, 1982.Moraes, N.A., M.C. de Almeida, A.N. Raick. Caso fatal de adiaspiromicose pulmonarhumana. Rev Inst Med Trop Sao Paulo 31:188–194, 1989.Peres, L.C., F. Figueiredo, M. Peinado, F.A. Soares. Fulminant disseminated pulmonaryadiaspiromycosis in humans. Am J Trop Med Hyg 46:146–150, 1992.Salfelder, K. New <strong>and</strong> un<strong>common</strong> opportunistic fungal infections. In:Pan American HealthOrganization. Proceedings of the Third International Conference on the Mycoses.Washing<strong>to</strong>n, D.C.: <strong>PAHO</strong>; 1975. (Scientific Publication 304).ASPERGILLOSISICD-10 B44.0 invasive pulmonary aspergillosis;B44.1 other pulmonary aspergillosis;B44.7 disseminated aspergillosis; B44.8 other forms of aspergillosisSynonyms: Pneumonomycosis, bronchomycosis (in animals).Etiology: Aspergillus fumigatus <strong>and</strong> occasionally other species of the genusAspergillus, such as A. flavus, A. nidulans, A. niger, <strong>and</strong> A. terreus. These saprophyticfungi are <strong>common</strong> components of the soil microflora; they play an importantrole in the decomposition of organic matter.Aspergillus flavus <strong>and</strong> A. parasiticus are known for their production of afla<strong>to</strong>xinsin oleaginous grains <strong>and</strong> seeds such as corn, rice, peanuts, <strong>and</strong> cot<strong>to</strong>nseeds s<strong>to</strong>redunder damp conditions. Afla<strong>to</strong>xin B 1is hepa<strong>to</strong><strong>to</strong>xic <strong>and</strong> carcinogenic for humans<strong>and</strong> animals. These fungi do not produce the afla<strong>to</strong>xin in animal tissue. Thus, thischapter covers only infection by Aspergillus spp.Geographic Distribution: The fungus is ubiqui<strong>to</strong>us <strong>and</strong> distributed worldwide.The disease has no particular distribution.Occurrence in Man: Aspergillosis occurs sporadically <strong>and</strong> is un<strong>common</strong>. Itsincidence, as is that of other opportunistic mycoses 1 (c<strong>and</strong>idiasis, zygomycosis), isincreasing due <strong>to</strong> the growing use of antibiotics, antimetabolites, <strong>and</strong> corticosteroids.It occurs frequently in advanced cases of cancer. Small nosocomial outbreakshave also been reported (see section on the disease in man).In Mexico, aspergillosis lesions were found in 1.2% of more than 2,000 r<strong>and</strong>omau<strong>to</strong>psies performed in a general hospital (González-Mendoza, 1970).Occurrence in Animals: Sporadic cases have been described in many species ofdomestic <strong>and</strong> wild mammals <strong>and</strong> birds. The disease in fowl <strong>and</strong> cattle has economic1Mycoses that attack debilitated persons or those treated over a long period with antibiotics,antimetabolites, or corticosteroids.

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