The House Dust Mite and Storage Mite fauna of New Zealand dwellings

Pike, Adrian J.; Wickens, Kristen

doi:10.1080/00779962.2008.9722161

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…We also anticipate that after the floods, mite re-infestation did not occur because the homes were unoccupied for a long time. Pike (1998) previously found that houses with a low number of occupants take a long time to become infested with dust mites and by inference, people must be occupying the house for infestation to occur, which was mostly lacking in the flood-affected homes. There is also the possibility that the allergens in the flood-affected materials were altered in some way that precluded measurement by ELISA.…”

Section: Resultsmentioning

confidence: 99%

Exposure matrices of endotoxin, (1→3)-β-d-glucan, fungi, and dust mite allergens in flood-affected homes of New Orleans

Adhikari

Lewis

Reponen

et al. 2010

Science of The Total Environment

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This study examined: (i) biocontaminant levels in flooded homes of New Orleans two years after the flooding; (ii) seasonal changes in biocontaminant levels, and (iii) correlations between biocontaminant levels obtained by different environmental monitoring methods. Endotoxin, (1→3)-β-d-glucan, fungal spores, and dust mite allergens were measured in 35 homes during summer and winter. A combination of dust sampling, aerosolization-based microbial source assessment, and long-term inhalable bioaerosol sampling aided in understanding exposure matrices. On average, endotoxin found in the aerosolized fraction accounted for <2% of that measured in the floor dust, suggesting that vacuuming could overestimate inhalation exposures. In contrast, the (1→3)-β-d-glucan levels in the floor dust and aerosolized fractions were mostly comparable, and 25% of the homes showed aerosolizable levels even higher than the dust-borne levels. The seasonal patterns for endotoxin in dust and the aerosolizable fraction were different from those found for (1→3)-β-d-glucan, reflecting the temperature and humidity effects on bacterial and fungal contamination. While the concentration of airborne endotoxin followed the same seasonal trend as endotoxin aerosolized from surfaces, no significant seasonal difference was identified for the concentrations of airborne (1→3)-β-d-glucan and fungal spores. This was attributed to the difference in the particle size; smaller endotoxin-containing particles can remain airborne for longer time than larger fungal spores or (1→3)-β-d-glucan-containing particles. It is also possible that fungal aerosolization in home environments did not reach its full potential. Detectable dust mite allergens were found only in dust samples, and more commonly in occupied homes. Levels of endotoxin, (1→3)-β-d-glucan, and fungi in air had decreased during the two-year period following the flooding as compared to immediate measurements; however, the dust-borne endotoxin and (1→3)-β-d-glucan levels remained elevated. No conclusive correlations were found between the three environmental monitoring methods. The findings support the use of multiple methods when assessing exposure to microbial contaminants.

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Section: Resultsmentioning

confidence: 99%

Exposure matrices of endotoxin, (1→3)-β-d-glucan, fungi, and dust mite allergens in flood-affected homes of New Orleans

Adhikari

Lewis

Reponen

et al. 2010

Science of The Total Environment

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“…Only a few countries have either predominantly D. pteronyssinus or D. farinae. Australia, 63,77 New Zealand, 78 England 79,80 and Mauritius 81 have D. pteronyssinus with few other HDM. Singapore has a bias to D. pteronyssinus but with B. tropicalis infestations.…”

Section: Distributionmentioning

confidence: 99%

Geography of house dust mite allergens

Thomas

2010

Asian Pac J Allergy Immunol

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Objective: To consider how the different distribution of house dust mites and their species in different geographical locations affects the allergens in the environment and their use. Data sources: Data were obtained from Medline, Genbank and library and web searches. Study selections: A comprehensive description of the genetic variations of allergens is given. The distribution of house dust mites is illustrated with publications that either make pertinent observations or would be useful for a broad appreciation of their geographical distribution. Results: The review identifies regions where glycyphagid house dust mites have been found and the distribution of the pyroglyphid Dermatophagoides spp. The antigenic differences the allergens of D. pteronyssinus and D. farinae are outlined and how this should affect optimal allergen usage in different regions. The allelic variations within the major allergens of Dermatophagoides sp. are similarly presented. Conclusions: While there is a broad knowledge of the distribution of different species of house dust mites, regions that require further examination have been identified and there are examples of incorrect use of allergens for different regions. The extension of allergy research and practice into new regions will benefit from allergen formulations designed for regional use. Specific knowledge of the allergens in the environments will be required to optimally implement some of the new molecularly-defined medicaments currently being developed for effective allergy vaccination and immunotherapy.

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“…Storage mites, especially several species from the families Acaridae, Glycyphagidae and Chortoglyphidae (Acari: Sarcoptiformes, Astigmatina), are commonly found in stored food products, hay, straw, granaries, barns and other farming and occupational environments, in dust from railway freight wagons, as well as in samples of house dust. The most abundant mites are Acarus siro, Acarus farris, Tyrophagus longior and Tyrophagus putrescentiae from Acaridae, Lepidoglyphus destructor and Glycyphagus domesticus from Glycyphagidae and Chortoglyphus arcuatus from Chortoglyphidae (Boström et al 1997;Franz et al 1997;Mehl 1998;Sánchez-Ramos et al 2004Pike and Wickens 2008;Wong et al 2011;Solarz 2012). These mites were identified as a source of clinically important allergens, causing occupational allergy (known as allergy to storage mites) among farmers, grain-storage workers and other agricultural workers (Fain et al 1990; Revsbech and Dueholm 1990;van Hage-Hamsten and Johansson 1998).…”

Section: Introductionmentioning

confidence: 99%

Risk of exposure of a selected rural population in South Poland to allergenic mites. Part II: acarofauna of farm buildings

Solarz

Pająk

2019

Exp Appl Acarol

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Exposure to mite allergens, especially from storage and dust mites, has been recognized as a risk factor for sensitization and allergy symptoms that could develop into asthma. The aim of this study was to investigate the occurrence of mites in debris and litter from selected farm buildings of the Małopolskie province, South Poland, with particular reference to allergenic and/or parasitic species as a potential risk factor of diseases among farmers. Sixty samples of various materials (organic dust, litter, debris and residues) from farm buildings (cowsheds, barns, chaff-cutter buildings, pigsties and poultry houses) were subjected to acarological examination. The samples were collected in Lachowice and Kurów (Suski district, Małopolskie). A total of 16,719 mites were isolated including specimens from the cohort Astigmatina (27 species) which comprised species considered as allergenic (e.g., Acarus siro complex, Tyrophagus putrescentiae, Lepidoglyphus destructor, Glycyphagus domesticus, Chortoglyphus arcuatus and Gymnoglyphus longior). Species of the families Acaridae (A. siro, A. farris and A. immobilis), Glycyphagidae (G. domesticus, L. destructor and L. michaeli) and Chortoglyphidae (C. arcuatus) have been found as numerically dominant among astigmatid mites. The majority of mites were found in cowsheds (approx. 32%) and in pigsties (25.9%). The remaining mites were found in barns (19.6%), chaff-cutter buildings (13.9%) and poultry houses (8.8%). The results suggest that the allergenic mites may constitute an occupational hazard for agricultural workers in all farming environments examined.

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The House Dust Mite and Storage Mite fauna of New Zealand dwellings

Cited by 5 publications

References 36 publications

Exposure matrices of endotoxin, (1→3)-β-d-glucan, fungi, and dust mite allergens in flood-affected homes of New Orleans

Exposure matrices of endotoxin, (1→3)-β-d-glucan, fungi, and dust mite allergens in flood-affected homes of New Orleans

Geography of house dust mite allergens

Risk of exposure of a selected rural population in South Poland to allergenic mites. Part II: acarofauna of farm buildings

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