Occupational sensitization to storage mites in the personnel of a water-damaged grocery store

Koistinen, Tiina; Ruoppi, Pirkko; Putus, Tuula; Pennanen, Sirpa; Harju, Anu; Nuutinen, Juhani

doi:10.1007/s00420-006-0097-4

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…Mites, especially stored product mites, are also found in groceries in high concentrations (Harju et al 2006;Koistinen et al 2006). The same species of mites were found in different stores; over 60% out of 949 specimens belonged to the Acaridae (Acarus sp.…”

Section: Pantriesmentioning

confidence: 99%

Indoor Arthropods of Forensic Importance: Insects Associated with Indoor Decomposition and Mites as Indoor Markers

Frost

Braig

Amendt³

et al. 2009

Current Concepts in Forensic Entomology

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Section: Pantriesmentioning

confidence: 99%

Indoor Arthropods of Forensic Importance: Insects Associated with Indoor Decomposition and Mites as Indoor Markers

Frost

Braig

Amendt³

et al. 2009

Current Concepts in Forensic Entomology

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“…Nevertheless, some species classified as storage mites are also capable of inducing sensitization and causing allergic respiratory symptoms (Solarz et al 2004 ; Vidal et al 2004 ; Ruoppi et al 2005 ; Storaas et al 2005 ; Koistinen et al 2006 ; Jeebhay et al 2007 ), causing occupational allergies. Some occupational and non-occupational allergy reports have been associated with the poorly known mite Glycycometus malaysiensis (Fain & Nadchatram) (= Austroglycyphagus malaysiensis ) (Aeroglyphidae) (Baratawidjaja et al 1999 ; Chew et al 1999a ; Tang et al 2011 ; Chong et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Identification of Glycycometus malaysiensis (for the first time in Brazil), Blomia tropicalis and Dermatophagoides pteronyssinus through multiplex PCR

et al. 2022

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Blomia tropicalis and Dermatophagoides pteronyssinus play an important role in triggering allergy . Glycycometus malaysiensis causes IgE reaction in sensitive people, but is rarely reported in domestic dust, because it is morphologically similar to B. tropicalis making the identification of these species difficult. The identification of mites is mostly based on morphology, a time-consuming and ambiguous approach. Herein, we describe a multiplex polymerase chain reaction (mPCR) assay based on ribosomal DNA capable to identify mixed cultures of B. tropicalis , D. pteronyssinus and G. malaysiensis , and/or to identify these species from environmental dust. For this, the internal transcribed spacer 2 (ITS2) regions, flanked by partial sequences of the 5.8S and 28S genes, were PCR-amplified, cloned and sequenced. The sequences obtained were aligned with co-specific sequences available in the GenBank database for primer design and phylogenetic studies. Three pairs of primers were chosen to compose the mPCR assay, which was used to verify the frequency of different mites in house dust samples ( n = 20) from homes of Salvador, Brazil. Blomia tropicalis was the most frequent, found in 95% of the samples, followed by G. malaysiensis (70%) and D. pteronyssinus (60%). Besides reporting for the first time the occurrence of G. malaysiensis in Brazil, our results confirm the good resolution of the ITS2 region for mite identification. Furthermore, the mPCR assay proved to be a fast and reliable tool for identifying these mites in mixed cultures and could be applied in future epidemiological studies, and for quality control of mite extract production for general use. Supplementary Information The online version contains supplementary material available at 10.1007/s10493-022-00694-y.

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“…Greenhouse workers may suffer from occupational allergic diseases, such as asthma, rhinitis, conjunctivitis and contact urticaria, caused by IgE-mediated allergy to the proteins of production plants [8,9] or the proteins of beneficial mites or insects [10]. Cross-sectional studies in Sweden [11], Denmark [12] and The Netherlands [13] have discovered sensitisation to pest control mites in 20-30% of greenhouse workers, and a recent Finnish study by the authors discovered as high as 50% prevalence of allergy to pest organisms including mites and insects [14].…”

Section: Introductionmentioning

confidence: 99%

Exposure to dust, endotoxins and microbes in Finnish vegetable greenhouses

Suuronen¹,

Hölttä²,

Korva³

et al. 2022

Ann Agric Environ Med.

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Introduction and Objective.In Finland and other northern countries, vegetable greenhouse workers are exposed to airborne dust and microbes all year round. The aim of the study was to assess respiratory exposure to dust, endotoxins and microbes, and to identify the risk phases of respiratory and skin exposure to promote safe working methods. Materials and method. Work in greenhouses was observed and recorded in a structured form. 23 personal samples and eight stationary samples of dust, endotoxins and viable microbes were collected from eight tomato or cucumber greenhouses in Finland. Dust samples were analysed gravimetrically. Endotoxins were analysed on filters by chromogenic Limulus amoebocyte lysate assay. Microbes were collected on filters, incubated and counted in three different culture media. Eight additional stationary samples of microbes were collected on a six-phase impactor.Results. The greenhouses were generally clean and well organised, but skin protection was deficient. The median of personal dust exposure was 0.24 mg/m 3 : 0.21 mg/m 3 in the tomatohouses and 0.62 mg/m 3 in the cucumber greenhouses. The mean level of bacteria in the tomato houses was 2.7 × 10 3 and in the cucumber houses 1.6 × 10 4 . Those of fungi were 3.6 × 10 5 and 1.7 × 10 5 on Hagem and 8.1 × 10 5 and 1.9 × 10 5 on DG-18, respectively. The microbes made up about 1/10 of these values in the stationary samples. Very low concentrations of endotoxins were found in 5/23 air samples. Conclusions. The clean appearance of the greenhouses was reflected in the low to moderate levels of dust. Risk phases of high exposure, such as lifting leaf debris, were identified. The microbe species were typical of this climate, and their levels were comparable to other greenhouse studies, but lower than in farming. Prevention among the foreign workforce is challenging due to the lack of a common language.

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Occupational sensitization to storage mites in the personnel of a water-damaged grocery store

Abstract: In grocery stores, the personnel are exposed to SMs. The risk of sensitization to mites is obvious and an IgE response can occur without any reactivity to common aeroallergens. SM allergy may in some cases explain the chronic rhinitis related to moisture-damaged buildings.

Cited by 5 publications

References 23 publications

Indoor Arthropods of Forensic Importance: Insects Associated with Indoor Decomposition and Mites as Indoor Markers

Indoor Arthropods of Forensic Importance: Insects Associated with Indoor Decomposition and Mites as Indoor Markers

Identification of Glycycometus malaysiensis (for the first time in Brazil), Blomia tropicalis and Dermatophagoides pteronyssinus through multiplex PCR

Exposure to dust, endotoxins and microbes in Finnish vegetable greenhouses

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