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Adhikari, Atin; Sen, Moon M.; Gupta‐Bhattacharya, Swati; Chanda, Sunirmal

doi:10.1023/a:1007171420410

Cited by 21 publications

(14 citation statements)

References 10 publications

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“…Alternaria is most predominant in dry weather (summer), as observed by other workers in other parts of the world. 28,34 In occupational environments such as the bakery and sugar industry, definite sources of fungal growth are present, even then seasonal patterns in fungal concentration have been reported, 13,35 which indicates that patients are definitely exposed to fungi according to their seasonality. Therefore, it becomes important to include seasonal variations in fungi in any study model because the concentration of any fungi taken at one time can not be representative of the level throughout the year.…”

Section: Discussionmentioning

confidence: 99%

“…6,9,10 In India little is known about the distribution of fungi inside the homes where people spend 12–16 hours daily, although quantitative prevalence of fungi in occupational sites have been studied. 11–13 The present study was aimed to examine the spectrum and concentration of airborne fungal flora inside and in the immediate vicinity of the homes of asthmatic children in the Delhi metropolis and to investigate the seasonal distributions of dominant fungi using standardized volumetric methods.…”

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confidence: 99%

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Indoor Fungal Concentration in the Homes of Allergic/Asthmatic Children in Delhi, India

Sharma

Deval

Priyadarshi

et al. 2011

Allergy�Rhinol (Providence)

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Allergy to fungi has been linked to a wide range of illnesses, including rhinitis and asthma. Therefore, exposure to fungi in home environment is an important factor for fungal allergy. The present study was aimed to investigate types of airborne fungi inside and outside the homes of asthmatic children and control subjects (nonasthmatic children). The dominant fungi were evaluated for their quantitative distribution and seasonal variation. The air samples were collected from indoors and immediate outdoors of 77 selected homes of children suffering from bronchial asthma/allergic rhinitis using Andersen volumetric air sampler. The isolated fungal genera/species were identified using reference literature, and statistical analysis of the dominant fungi was performed to study the difference in fungal concentration between indoor and immediate outdoor sites as well as in between different seasons. A total of 4423 air samples were collected from two indoor and immediate outdoor sites in a 1-year survey of 77 homes. This resulted in the isolation of an average of 110,091 and 107,070 fungal colonies per metric cube of air from indoor and outdoor sites, respectively. A total of 68 different molds were identified. Different species of Aspergillus, Alternaria, Cladosporium, and Penicillium were found to be the most prevalent fungi in Delhi homes, which constituted 88.6% of the total colonies indoors. Highest concentration was registered in autumn and winter months. Total as well as dominant fungi displayed statistically significant differences among the four seasons (p < 0.001). The largest number of isolations were the species of Aspergillus (>40% to total colony-forming units in indoors as well as outdoors) followed by Cladosporium spp. Annual concentration of Aspergillus spp. was significantly higher (p < 0.05) inside the homes when compared with outdoors. Most of the fungi also occurred at a significantly higher (p < 0.001) rate inside the homes when compared with immediate outdoors. Asthmatic children in Delhi are exposed to a substantial concentration of mold inside their homes as well as immediate outdoor air. The considerable seasonal distributions of fungi provide valuable data for investigation of the role of fungal exposure as a risk for respiratory disorders among patients suffering from allergy or asthma in Delhi.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Indoor Fungal Concentration in the Homes of Allergic/Asthmatic Children in Delhi, India

Sharma

Deval

Priyadarshi

et al. 2011

Allergy�Rhinol (Providence)

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“…Cladosporium, Aspergillus and Penicillium (Srikanth et al, 2008;Adhikari et al, 2004;Ustaçelebi, 1999 *Jan, January; *Apr, April; *Jul, July; *Oct, October; *C, Carpet; *W, Wall; *P, Prayer beads.…”

Section: Discussionmentioning

confidence: 99%

A study on the fungi isolated from the carpeting, walls and prayer beads from the New Mosque and Nuruosmaniye Mosque situated in the province of Istanbul

PaÃ§a¹,

Ã‡olakoÄŸlu²

2017

J. Public Health Epidemiol.

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Mosques which are visited by many people every day, for both worship and touristic purposes, play an important role in the spread of infections in society. It is for this reason that research into the fungal concentrations found on the carpets, walls and prayer beads in mosques may prove instrumental in determining potential risks and in protecting the health of visitors. The sampling of fungus content from the carpeting, walls and prayer beads of two different mosques in the province of Istanbul was undertaken with the aim of determining fungi content and levels at two chosen stations in 2015 in the months of January, April, July and October. Samples were taken using dry sterile swabs. The samples brought to the laboratory were cultivated in Peptone-Dextrose Agar in appropriate conditions. The isolated fungi were spot cultivated in Malt Extract Agar (MEA) medium and pure colonies were detected. The preparations extracted from the pure culture of the fungi were examined using a microscope. In the sampling carried out for a duration of four months, 190 colonies were detected. As a result of the study undertaken, 18 different species from 8 genera were isolated. The genera identified were as follows; Alternaria, Aspergillus, Chaetomium, Cladosporium, Penicillium, Scopulariopsis, Trichoderma and Ulocladium. Amongst the genera, the 3 most commonly detected ones were; Aspergillus, 53.2% Penicillium 24.2% and Cladosporium, 14.2%. As a result of the study, the species most isolated, in order, are as follows: Aspergillus fumigatus at 25.8% Aspergillus flavus at 12.7%, Aspergillus parasiticus at 10%, Cladosporium sphaerospermum and Penicillium palitans at 8.4% respectively, Penicillium citreonigrum at 7.4%, Cladosporium cladosporioides at 6.3%, Penicillium citrinum at 5.8%, Chaetomium globosum at 4.2%, Aspergillus niger at 3.2%, Penicillium solitum and Trichoderma longibrachiatum at 1.6% respectively, Alternaria citri, Emericella nidulans and Penicillium chrysogenum at 1.05% respectively and Aspergillus sydowii, Scopulariopsis brevicaulis and Ulocladium alternariae at 0.5% respectively.

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“…Skin prick test (SPT) was performed according to the ethics of the hospital with our supplied fungal allergen extract, along with other standard allergens. The antigenic crude extract (1:10 w/v) was prepared from the individual dominant culturable fungi of the study area [4,65]. Phosphate buffer saline (PBS-0.01M, pH 7.2) and histamine diphosphate (1 mg mL −1 ) were taken as negative and positive controls, respectively.…”

Section: Allergenic Sensitivity Of Atopic Patients Against Dominant Cmentioning

confidence: 99%

Fungal bio-aerosol in multiple micro-environments from eastern India: source, distribution, and health hazards

et al. 2020

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Health hazards associated with bio-aerosol is gaining immense importance in recent time. However, studies linking the probable source characterization of bio-aerosol, and their potential effect as respiratory ailments on the local people are extremely rare over the Indian subcontinent as well as in global perspective. To fill our knowledge gap, we have conducted a 3-year study on fungal bio-aerosol characterization, possible source segregation, identification of health hazardous fungal species and their role in causing allergy from seven different micro-environments over a semi-rural site of lower Indo-Gangetic Plain, West Bengal, India. The result showed the highest fungal spore concentration as well as spore diversity in the crop field (4477 ± 1343 spores m −3) and the lowest in the classroom (1994 ± 651 spores m −3). Ascospore, basidiospore, Cladosporium, and Aspergilli group were the primary indoor spores. The marker species for the crop field were Curvularia and Drechslera, whereas Ganoderma was for the factory environment. Source profile of the fungal spore of different micro-environments indicates the domination of outdoor species, whereas enclosed microenvironments have been dominated with spores of indoor origin. Aspergillus, Curvularia, Penicillium, and Rhizopus oryzae showed maximum correlation with the local allergic rhinitis and asthmatic patients. In skin prick test, Aspergillus sp., contributing a maximum percentage of the total culturable fungi, was found to be an expected potent allergic candidate in both non-asthmatic and asthmatic patients, as well. This study will directly help the inhabitants to avoid the hazardous fungal sensitization in different micro-environments.

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Cited by 21 publications

References 10 publications

Indoor Fungal Concentration in the Homes of Allergic/Asthmatic Children in Delhi, India

Indoor Fungal Concentration in the Homes of Allergic/Asthmatic Children in Delhi, India

A study on the fungi isolated from the carpeting, walls and prayer beads from the New Mosque and Nuruosmaniye Mosque situated in the province of Istanbul

Fungal bio-aerosol in multiple micro-environments from eastern India: source, distribution, and health hazards

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