Indoor Exposure to Mould Allergens

Prester, Ljerka

doi:10.2478/10004-1254-62-2011-2126

Cited by 17 publications

(14 citation statements)

References 96 publications

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“…Finally, the finding of all Aspergillus species in air samples (Group I), as well as in human samples (Group IV), suggests that laying hen farms might represent suitable vehicles of fungal infections for humans and/or birds, especially when suffering an underlying condition of immunosuppression and when coming in contact with a large number of airborne Aspergillus conidia (Morris et al , 2000; Alberti et al , 2001; Heinemann et al , 2004; Fulleringer et al , 2006; Prester, 2011; Sabino et al , 2012). However, the potential role of other environmental reservoirs of Aspergillus spp.…”

Section: Discussionmentioning

confidence: 97%

Environmental contamination by Aspergillus spp. in laying hen farms and associated health risks for farm workers

Cafarchia

Camarda

Iatta

et al. 2014

Journal of Medical Microbiology

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Data on the occurrence and epidemiology of Aspergillus spp. in laying hens farms are scant. With the aims of determining levels of airborne contamination in laying hen farms and evaluating the potential risk of infection for workers and animals, 57 air samples from 19 sheds (Group I), 69 from faeces (Group II), 19 from poultry feedstuffs (Group III) and 60 from three anatomical sites (i.e. nostrils, pharynx, ears) of 20 farm workers (Group IV) were cultured. The Aspergillus spp. prevalence in samples ranged from 31.6 % (Group III) to 55.5 % (Group IV), whereas the highest conidia concentration was retrieved in Group II (1.2¾10 4 c.f.u. g "1) and in Group III (1.9¾10 3 c.f.u. g "1). The mean concentration of airborne Aspergillus spp. conidia was 70 c.f.u. m "3 with Aspergillus fumigatus (27.3 %) being the most frequently detected species, followed by Aspergillus flavus (6.3 %). These Aspergillus spp. were also isolated from human nostrils (40 %) and ears (35 %) (P,0.05) (Group IV). No clinical aspergillosis was diagnosed in hens. The results demonstrate a relationship between the environmental contamination in hen farms and presence of Aspergillus spp. on animals and humans. Even if the concentration of airborne Aspergillus spp. conidia (i.e. 70 c.f.u. m "3) herein detected does not trigger clinical disease in hens, it causes human colonization. Correct management of hen farms is necessary to control environmental contamination by Aspergillus spp., and could lead to a significant reduction of animal and human colonization.

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Section: Discussionmentioning

confidence: 97%

Environmental contamination by Aspergillus spp. in laying hen farms and associated health risks for farm workers

Cafarchia

Camarda

Iatta

et al. 2014

Journal of Medical Microbiology

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“…capsici [72,75] and other fungi with fungicides to prevent mycotoxin production and excessive yield losses is possible but causes another health risk to farmers and consumers [28,29]. Finally, the rather common occurrence of Penicillium and Aspergillus in the stored beans in Nicaragua causes a risk for exposure to mycotoxins and allergens and calls for better management of bean crops in the field and improved post-harvest practices [22,77]. …”

Section: Discussionmentioning

confidence: 99%

Seedborne Pathogenic Fungi in Common Bean (Phaseolus vulgaris cv. INTA Rojo) in Nicaragua

Marcenaro

Valkonen

2016

PLoS ONE

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Common bean (Phaseolus vulgaris L.) is an important legume with high nutritional value. In Nicaragua, certified healthy seeds of local bean varieties are not available, and seedborne fungi have gained little attention. Here, were surveyed seedborne pathogenic fungi in an important local bean cultivar, ‘INTA Rojo’. Beans grown in the four main production areas in Nicaragua (Boaco, Carazo, Estelí, Matagalpa) for future use as seed stock were sampled from four seed storehouses and six seed lots. A total of 133 fungal strains were isolated from surface-sterilized beans and inoculated to healthy lima beans (Phaseolus lunatus) under controlled conditions. Eighty-seven isolates caused symptoms of varying severity in the seedlings, including discoloration, necrotic lesions, cankers, rot, and lethal necrosis. Pathogenic isolates were divided into eight phenotypically distinguishable groups based on morphology and growth characteristics on artificial growth medium, and further identified by analysis of the internal transcribed spacer sequences (ITS1 and ITS2) of the ribosomal RNA genes. The pathogenic isolates belonged to eight genera. Fusarium spp. (F. chlamydosporum, F. equiseti, F. incarnatum), Lasiodiplodia theobromae, Macrophomina phaseolina, and Penicillium citrinum were the most damaging and common fungi found in the seed lots. Furthermore, Corynespora cassiicola, Colletotrichum capsisi, Colletotrichum gloeosporioides, Aspergillus flavus, and Diaporthe sp. (Phomopsis) were seedborne in cultivar ‘INTA Rojo’ and found to be pathogenic to bean seedlings. This study reveals, for the first time, many seedborne pathogenic fungi in beans in Nicaragua; furthermore, prior to this study, little information was available concerning F. equiseti, F. incarnatum, L. theobromae, C. cassiicola, and Diaporthe spp. as seedborne pathogens of common bean. Our results lay the basis for developing diagnostic tools for seed health inspection and for further study of the epidemiology, ecology, and control of the pathogenic fungi of common beans in the field.

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“…and their allergens [40, 41]. According to the existing literature, the number of fungal colonies in homes that provide healthcare for asthmatic children is higher, especially in children’s beds and the rooms in which children spend most of their time [42]. …”

Section: Introductionmentioning

confidence: 99%

Aspergillus species in indoor environments and their possible occupational and public health hazards

et al. 2016

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The genus Aspergillus, which consists of a few hundred opportunistic mold species found in various climatic conditions, causes diseases including localized infections, fatal diseases, allergic responses, and inhaled conidia in humans. Herein, we present an overview of the most common diseases and allergic infections caused by Aspergillus species and their associated health hazards in various indoor environments worldwide.

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Indoor Exposure to Mould Allergens

Cited by 17 publications

References 96 publications

Environmental contamination by Aspergillus spp. in laying hen farms and associated health risks for farm workers

Environmental contamination by Aspergillus spp. in laying hen farms and associated health risks for farm workers

Seedborne Pathogenic Fungi in Common Bean (Phaseolus vulgaris cv. INTA Rojo) in Nicaragua

Aspergillus species in indoor environments and their possible occupational and public health hazards

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