{"title":"Architecture that Might Have Contributed to Disease Prevention","authors":"Terence Chorba","doi":"10.3201/eid3006.ac3006","DOIUrl":"https://doi.org/10.3201/eid3006.ac3006","url":null,"abstract":"","PeriodicalId":507238,"journal":{"name":"Emerging Infectious Diseases","volume":"114 5","pages":"1304 - 1306"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141234479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Looming Storm on the Horizon","authors":"Byron Breedlove","doi":"10.3201/eid3005.ac3005","DOIUrl":"https://doi.org/10.3201/eid3005.ac3005","url":null,"abstract":"","PeriodicalId":507238,"journal":{"name":"Emerging Infectious Diseases","volume":"22 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141025096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shylo E Wardyn, Marc Stegger, Lance B Price, Tara C Smith
Staphylococcus aureus strain sequence type (ST) 398 has emerged during the last decade, largely among persons who have contact with swine or other livestock. Although colonization with ST398 is common in livestock workers, infections are not frequently documented. We report recurrent ST398-IIa infection in an Iowa farmer in contact with swine and cattle.
{"title":"Whole-Genome Analysis of Recurrent Staphylococcus aureus t571/ST398 Infection in Farmer, Iowa, USA.","authors":"Shylo E Wardyn, Marc Stegger, Lance B Price, Tara C Smith","doi":"10.3201/eid2401.161184","DOIUrl":"10.3201/eid2401.161184","url":null,"abstract":"<p><p>Staphylococcus aureus strain sequence type (ST) 398 has emerged during the last decade, largely among persons who have contact with swine or other livestock. Although colonization with ST398 is common in livestock workers, infections are not frequently documented. We report recurrent ST398-IIa infection in an Iowa farmer in contact with swine and cattle.</p>","PeriodicalId":507238,"journal":{"name":"Emerging Infectious Diseases","volume":" ","pages":"153-154"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5749462/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35673434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dennis Tappe, Ralf Winzer, Dietrich W Büttner, Philipp Ströbel, August Stich, Hartwig Klinker, Matthias Frosch
To the Editor: Pentastomids or tongue worms are a unique group of vermiform parasites, phylogenetically related to arthropods (1). Of the many pentastomid species, only a few, including Linguatula serrata, infect humans. The adult parasites are long, flat, or annulated and have 4 hooks surrounding a central mouth. Adult L. serrata inhabit the nasal passages and paranasal sinuses of wild and domestic canids, which serve as definitive hosts. Infective eggs containing larvae are discharged into the environment by nasopharyngeal secretions and are ingested by herbivores, the natural intermediate hosts. Humans can become dead-end intermediate hosts; visceral linguatuliasis then develops (2) if infective eggs are ingested. The liver is the organ most often involved (3–5), but the lung (4,6,7) or other organs (4,8) may be affected. Parasites may also be found in lymph nodes. In the viscera, the primary 4-legged larva molts several times and eventually forms the legless nymph. Lesions due to Linguatula may be confused with malignancy, particularly in the lung (6). We describe a recent infection with L. serrata in Germany in a patient who had pulmonary symptoms and in whom malignancy was suspected. The patient was a 39-year-old man of Russian origin who had been living in Germany since 1999. He was admitted to the hospital with weight loss, night sweats, chest pain, and coughing. He had been a smoker for 20 years, and his past medical history included pneumonia and sinusitis in 1989 during his military service at Lake Baikal, Russia. The patient had been living in a farmhouse in Karaganda, Kazakhstan, until he immigrated to Germany. A chest radiograph and computed tomographic scan showed multiple, small lesions in both lungs. Malignancy was suspected, and a bronchoscopy was performed. Numerous granulomatous nodules were discovered. Thoracotomy was performed, and stringlike nodules on the pleural surface were resected. Except for a mild eosinophilia (7%, 500 cells/μL), the leukocyte count was normal. All other parameters, including C-reactive protein levels, angiotensin-converting enzyme, and tumor markers were normal. Histologic examination of the nodules showed a targetoid appearance with a sharp demarcation from the surrounding lung tissue by a thick fibrocollagenous capsule. In the center of the nodules, a transverse section (Figure, right inset) and a longitudinal section (Figure, main panel) of a parasite were visible. The parasite had a chitinous cuticle ≈2.5 μm thick and cuticular spines 20–30 μm long. The spines and the serrated aspect are characteristic for L. serrata, a pentastome. Ringlike structures in the body wall were interpreted as sclerotized openings, a key feature of pentastomes. In close contact to host tissue, a shed cuticle was visible and assigned to the previous instar larva. The biometric data of the parasite were comparable to those measured by others (6,9). Hooks, typical for the oral armature of pentastomes, were found by
{"title":"Linguatuliasis in Germany.","authors":"Dennis Tappe, Ralf Winzer, Dietrich W Büttner, Philipp Ströbel, August Stich, Hartwig Klinker, Matthias Frosch","doi":"10.3201/eid1206.051413","DOIUrl":"https://doi.org/10.3201/eid1206.051413","url":null,"abstract":"To the Editor: Pentastomids or tongue worms are a unique group of vermiform parasites, phylogenetically related to arthropods (1). Of the many pentastomid species, only a few, including Linguatula serrata, infect humans. The adult parasites are long, flat, or annulated and have 4 hooks surrounding a central mouth. Adult L. serrata inhabit the nasal passages and paranasal sinuses of wild and domestic canids, which serve as definitive hosts. Infective eggs containing larvae are discharged into the environment by nasopharyngeal secretions and are ingested by herbivores, the natural intermediate hosts. Humans can become dead-end intermediate hosts; visceral linguatuliasis then develops (2) if infective eggs are ingested. The liver is the organ most often involved (3–5), but the lung (4,6,7) or other organs (4,8) may be affected. Parasites may also be found in lymph nodes. In the viscera, the primary 4-legged larva molts several times and eventually forms the legless nymph. Lesions due to Linguatula may be confused with malignancy, particularly in the lung (6). \u0000 \u0000We describe a recent infection with L. serrata in Germany in a patient who had pulmonary symptoms and in whom malignancy was suspected. The patient was a 39-year-old man of Russian origin who had been living in Germany since 1999. He was admitted to the hospital with weight loss, night sweats, chest pain, and coughing. He had been a smoker for 20 years, and his past medical history included pneumonia and sinusitis in 1989 during his military service at Lake Baikal, Russia. The patient had been living in a farmhouse in Karaganda, Kazakhstan, until he immigrated to Germany. \u0000 \u0000A chest radiograph and computed tomographic scan showed multiple, small lesions in both lungs. Malignancy was suspected, and a bronchoscopy was performed. Numerous granulomatous nodules were discovered. Thoracotomy was performed, and stringlike nodules on the pleural surface were resected. Except for a mild eosinophilia (7%, 500 cells/μL), the leukocyte count was normal. All other parameters, including C-reactive protein levels, angiotensin-converting enzyme, and tumor markers were normal. Histologic examination of the nodules showed a targetoid appearance with a sharp demarcation from the surrounding lung tissue by a thick fibrocollagenous capsule. In the center of the nodules, a transverse section (Figure, right inset) and a longitudinal section (Figure, main panel) of a parasite were visible. The parasite had a chitinous cuticle ≈2.5 μm thick and cuticular spines 20–30 μm long. The spines and the serrated aspect are characteristic for L. serrata, a pentastome. Ringlike structures in the body wall were interpreted as sclerotized openings, a key feature of pentastomes. In close contact to host tissue, a shed cuticle was visible and assigned to the previous instar larva. The biometric data of the parasite were comparable to those measured by others (6,9). Hooks, typical for the oral armature of pentastomes, were found by","PeriodicalId":507238,"journal":{"name":"Emerging Infectious Diseases","volume":" ","pages":"1034-6"},"PeriodicalIF":11.8,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3201/eid1206.051413","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26070803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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