{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T15:38:56Z","timestamp":1782833936011,"version":"3.54.5"},"reference-count":17,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,9,5]],"date-time":"2022-09-05T00:00:00Z","timestamp":1662336000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Infectious Disease Reports"],"abstract":"<jats:p>(1) Background: Pyemotes ventricosus dermatitis, caused by free-living mites, could be difficult to diagnose since bites are painless and ectoparasites are not visible. We present an unpublished clinical case that occurred in Italy and an extensive review of clinical cases and outbreaks of Pyemotes species. (2) Methods: Case reports and outbreaks of Pyemotes spp. were searched for on Pubmed and Embase. Epidemiological and clinical data were analysed with descriptive statistics. (3) Results: In total, we found 40 case reports and 21 outbreaks to be considered in this review. The majority of cases involved young females, occurred in summer and were observed in Europe. Dermatitis was the most common clinical manifestation. Diagnosis was mainly based on risk factors. Treatment was based on topical steroids and antihistamine drugs. Regarding outbreaks, contact with grain or feed and exposure with infested furniture were the main risk factors. The mean number of involved patients were 69, with symptoms most commonly ending within a week. (4) Conclusions: Pyemotes ventricosus dermatitis is underreported, especially in countries like Africa and Central and South-America, since disease is self-limiting and comet sign is reported in a quarter of cases. The reduction in use of pesticides in agriculture could lead to an increased exposure to Pyemotes spp. in the future.<\/jats:p>","DOI":"10.3390\/idr14050072","type":"journal-article","created":{"date-parts":[[2022,9,6]],"date-time":"2022-09-06T05:17:23Z","timestamp":1662441443000},"page":"668-674","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Pyemotes ventricosus Dermatitis: A Case Report and an Extensive Review of Outbreaks and Clinical Cases"],"prefix":"10.3390","volume":"14","author":[{"given":"Iacopo","family":"Vellere","sequence":"first","affiliation":[{"name":"Infectious Disease Unit, Ferrara University Hospital, 44124 Ferrara, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Di Felice","sequence":"additional","affiliation":[{"name":"Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Annarita","family":"Botta","sequence":"additional","affiliation":[{"name":"Respiratory Infectious Diseases Unit, Cotugno Hospital\u2014A.O.R.N. Dei Colli, 80131 Naples, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4545-8034","authenticated-orcid":false,"given":"Andrea","family":"Angheben","sequence":"additional","affiliation":[{"name":"Department of Infectious\u2014Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar Di Valpolicella, 37024 Verona, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9758-1523","authenticated-orcid":false,"given":"Alessandro","family":"Bartoloni","sequence":"additional","affiliation":[{"name":"Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0892-8404","authenticated-orcid":false,"given":"Lorenzo","family":"Zammarchi","sequence":"additional","affiliation":[{"name":"Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1111\/ijd.1963.2.4.226","article-title":"Straw Itch Mite Dermatitis Caused by Pyemotes ventricosus","volume":"2","author":"Scott","year":"1963","journal-title":"Int. J. Dermatol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"102077","DOI":"10.1016\/j.tmaid.2021.102077","article-title":"Mite Bites, Comet Signs and Possible Mammary Prosthesis Rejection after Returning to a Vacation Home: A Diagnostic Challenge","volume":"42","author":"Laghi","year":"2021","journal-title":"Travel Med. Infect. Dis."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1041","DOI":"10.4269\/ajtmh.18-1006","article-title":"Pyemotes ventricosus Dermatitis: A Serpiginous Skin Lesion Due to a Mite That Parasitizes a Wood-Boring Beetle","volume":"100","author":"Neumayr","year":"2019","journal-title":"Am. J. Trop. Med. Hyg."},{"key":"ref_4","first-page":"93","article-title":"Pyemotes ventricosus Detection in a Baby Skin Folds","volume":"33","author":"Tognetti","year":"2018","journal-title":"J. Eur. Acad. Dermatol. Venereol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"937","DOI":"10.1097\/DAD.0000000000001463","article-title":"An Unusual Presentation of Pyemotes ventricosus Dermatitis Presenting with Umbilicated Papules Mimicking Poxvirus Infection","volume":"41","author":"Henning","year":"2019","journal-title":"Am. J. Dermatopathol."},{"key":"ref_6","first-page":"73","article-title":"Cotton-seed dermatitis and its cause, Pediculoides ventricosus","volume":"33","author":"Nixon","year":"1915","journal-title":"Bristol Med. Chir. J."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"686","DOI":"10.1001\/jamadermatol.2017.0323","article-title":"Outbreak of Occupational Dermatitis Associated with Pyemotes ventricosus","volume":"153","author":"Limburska","year":"2017","journal-title":"JAMA Dermatol."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1046\/j.1365-2915.2002.00386.x","article-title":"Dermatitis in Humans Associated with the Mites Pyemotes Tritici, Dermanyssus Gallinae, Ornithonyssus Bacoti and Androlaelaps Casalis in Israel","volume":"16","author":"Rosen","year":"2002","journal-title":"Med. Vet. Entomol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"797","DOI":"10.5694\/j.1326-5377.1961.tb70023.x","article-title":"Skin eruption in a group of waterside workres due to a mite, Pyemotes ventricosus","volume":"2","author":"Kelly","year":"1961","journal-title":"Med. J. Aust."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1575","DOI":"10.1001\/jama.1952.03680160025006","article-title":"Epidemiological and clinical study of grain itch","volume":"150","author":"Booth","year":"1952","journal-title":"J. Am. Med. Assoc."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"416","DOI":"10.1097\/00007611-196504000-00003","article-title":"Straw Itch Mite Dermatitis Caused by Pyemotes ventrtcosus: Comparative Aspects","volume":"58","author":"Fine","year":"1965","journal-title":"South. Med. J."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"973","DOI":"10.2307\/4563318","article-title":"Epidemic of an urticarioid dermatitis due to a small mite (Pediculoides ventricosus) in the straw of a mattress","volume":"24","author":"Goldberger","year":"1909","journal-title":"Public Health Rep."},{"key":"ref_13","first-page":"951","article-title":"Signo de La Cometa En La Dermatitis Por Pyemotes","volume":"112","year":"2021","journal-title":"Actas Dermo-Sifiliogr\u00e1ficas"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"838","DOI":"10.1007\/s001050050835","article-title":"Getreidekratze: Eine Kleine Epidemie Durch Pyemotes Spezies","volume":"49","author":"Grob","year":"1998","journal-title":"Hautarzt"},{"key":"ref_15","unstructured":"United Nation Convention to Combat Desertification (UNCCD) (2022, June 30). Land Degradation Neutrality for Sustainable Agriculture & Food Security. Available online: https:\/\/www.unccd.int\/resources\/publications\/land-degradation-neutrality-sustainable-agriculture-food-security."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"423","DOI":"10.1111\/j.1365-2133.1976.tb06120.x","article-title":"A Case of Pyemotes Dermatitis: With a Note on the Role of These Mites in Skin Disease","volume":"94","author":"Hewitt","year":"1976","journal-title":"Br. J. Dermatol."},{"key":"ref_17","first-page":"10","article-title":"An outbreak of itch due to a predaceous mite, occurring in England amongst men engaged in unloading cotton seed from Egypt","volume":"13","year":"1920","journal-title":"Trans. R. Soc. Trop. Med."}],"container-title":["Infectious Disease Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2036-7449\/14\/5\/72\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:23:21Z","timestamp":1760142201000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2036-7449\/14\/5\/72"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9,5]]},"references-count":17,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2022,10]]}},"alternative-id":["idr14050072"],"URL":"https:\/\/doi.org\/10.3390\/idr14050072","relation":{},"ISSN":["2036-7449"],"issn-type":[{"value":"2036-7449","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,9,5]]}}}