Natalie N. Tarbuck, Sofya K. Garushyants, Dillon S. McBride, Patricia M. Dennis, John Franks, Karlie Woodard, Austin Shamblin, Michael G. Sovic, Derek T. Collins, Kyle Van Why, Richard J. Webby, Martha I. Nelson, Andrew S. Bowman
{"title":"Persistence of SARS-CoV-2 Alpha Variant in White-Tailed Deer, Ohio, USA","authors":"Natalie N. Tarbuck, Sofya K. Garushyants, Dillon S. McBride, Patricia M. Dennis, John Franks, Karlie Woodard, Austin Shamblin, Michael G. Sovic, Derek T. Collins, Kyle Van Why, Richard J. Webby, Martha I. Nelson, Andrew S. Bowman","doi":"10.3201/eid3107.241922","DOIUrl":"https://doi.org/10.3201/eid3107.241922","url":null,"abstract":"<p>Free-ranging white-tailed deer (WTD) are highly susceptible to the SARS-CoV-2 virus. Through an opportunistic sampling of WTD in northeast Ohio, USA, during January–March 2023, we identified 6 SARS-CoV-2 lineages from 36 sequences using the pangolin lineages tool, including the B.1.1.7 lineage (Alpha variant) and BQ.1.1, BQ.1.1.63, BQ.1.1.67, BQ.1.23, and XBB.1.5.35 lineages (Omicron variant). The Alpha variant, introduced by a single human-to-deer transmission event, was detected in 5 WTD in January 2023, more than 1 year after the most recent detection of the Alpha variant in humans in Ohio (August 2021). A genetically similar B.1.1.7 lineage virus from WTD in a nearby county in Pennsylvania was positioned with our Ohio deer transmission cluster, suggesting deer-to-deer transmission. The persistence of the Alpha variant in WTD in Ohio warrants continued surveillance to monitor if WTD can become a reservoir for displaced SARS-CoV-2 variants. </p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"46 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Increasing Predominance of Norovirus GII.17 over GII.4, United States, 2022–2025","authors":"Leslie Barclay, Jan Vinjé","doi":"10.3201/eid3107.250524","DOIUrl":"https://doi.org/10.3201/eid3107.250524","url":null,"abstract":"<p>Norovirus GII.17 outbreaks in the United States increased from <10% during the 2022–23 season to 75% during the 2024–25 season, surpassing the number of GII.4 outbreaks. The norovirus season also started earlier in 2024–25 than in previous seasons. Continued norovirus surveillance is needed to detect and monitor emerging strains.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"4 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luc Van Os, Nathalie Cassoux, Symira Cholidis, Pascal Dureau, Navid Farassat, Fabienne Catherine Fierz, Ebba Ghyczy, Elena-Cristina Nitulescu, Eva Stifter, Marie-José Tassignon, Anne Le Flèche-Matéos, Birgit Lorenz
{"title":"Multicenter Retrospective Study of Spiroplasma ixodetis Infantile Cataract in 8 Countries in Europe.","authors":"Luc Van Os, Nathalie Cassoux, Symira Cholidis, Pascal Dureau, Navid Farassat, Fabienne Catherine Fierz, Ebba Ghyczy, Elena-Cristina Nitulescu, Eva Stifter, Marie-José Tassignon, Anne Le Flèche-Matéos, Birgit Lorenz","doi":"10.3201/eid3106.240954","DOIUrl":"10.3201/eid3106.240954","url":null,"abstract":"<p><p>Spiroplasma ixodetis has been reported to cause the rare combination of cataract and uveitis in infants. Through a retrospective analysis of available literature and additional unpublished cases, we identified 28 eyes from 18 infants from 8 countries in Europe with cataracts and intraocular inflammation. The cataracts were bilateral in 55.6%, unilateral in 44.4%, and progressive in 46.4% of patients. Granulomatous anterior uveitis was found in all infants. Presence of S. ixodetis was supported by PCR (positive in 89.3% of eyes tested), transmission electron microscopy (positive in 90% of eyes tested), or culture of aspirated lens material (positive in 87.5% of eyes tested). Treatment with macrolide antimicrobial drugs, corticosteroids, and lensectomy appeared to be effective. Two patients had a recurrence of the uveitis after lens extraction and needed prolonged treatment. To increase awareness of S. ixodetis, we suggest its inclusion with the organisms of the TORCH acronym.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"31 6","pages":"1081-1089"},"PeriodicalIF":7.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12123929/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144173364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M’hensa Vincent De Paul Bakpatina-Batako, Kevin Li, Sonia Lacouture, Lucía Cipolla, Ariel Gianecini, Mónica Prieto, Marcelo Gottschalk, Nahuel Fittipaldi
{"title":"Human Streptococcus suis Infections, South America, 1995–2024","authors":"M’hensa Vincent De Paul Bakpatina-Batako, Kevin Li, Sonia Lacouture, Lucía Cipolla, Ariel Gianecini, Mónica Prieto, Marcelo Gottschalk, Nahuel Fittipaldi","doi":"10.3201/eid3107.241835","DOIUrl":"https://doi.org/10.3201/eid3107.241835","url":null,"abstract":"<p><em>Streptococcus suis</em>, a swine pathogen that causes zoonotic infections in Europe and Asia, has increasingly been observed in South America. We reviewed all available reports from the continent and identified <em>S. suis</em> cases in Argentina, Brazil, Chile, French Guiana, and Uruguay. We also identified 8 novel infections from Argentina, bringing the total documented human cases in South America to 47. We reclassified 1 previously reported infection as <em>S. parasuis</em>. Among the 47 <em>S. suis</em> cases, 40 (85%) patients had meningitis, 2 (4%) had toxic shock–like illness, 2 (4%) had nonshock sepsis, 1 (2%) had arthritis, and 1 (2%) had endocarditis. The case-fatality rate was 4% (2/47). Infections were primarily linked to pig or pork exposure, although some occurred after consuming undercooked meat. Case distribution varied by country, and Argentina reported a disproportionately high number of cases despite a smaller swine industry. Our findings highlight the need for more consistent regional <em>S. suis</em> surveillance.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"28 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jason Lombard, Chloe Stenkamp-Strahm, Brian McCluskey, Blaine Melody
{"title":"Evidence of Viremia in Dairy Cows Naturally Infected with Influenza A Virus, California, USA","authors":"Jason Lombard, Chloe Stenkamp-Strahm, Brian McCluskey, Blaine Melody","doi":"10.3201/eid3107.250134","DOIUrl":"https://doi.org/10.3201/eid3107.250134","url":null,"abstract":"<p>We confirmed influenza A virus (IAV) by PCR in serum from 18 cows on 3 affected dairy farms in California, USA. Our findings indicate the presence of viremia and might help explain IAV transmission dynamics and shedding patterns in cows. An understanding of those dynamics could enable development of IAV mitigation strategies.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"5 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaitlin Benedict, Alexander Jordan, Jeremy A.W. Gold, Dallas J. Smith, Tom Chiller, Ian Hennessee, Philip M. Polgreen, Susan E. Beekmann
{"title":"Emerging Infections Network Survey of Screening for Cryptococcal Antigenemia, United States, 2024","authors":"Kaitlin Benedict, Alexander Jordan, Jeremy A.W. Gold, Dallas J. Smith, Tom Chiller, Ian Hennessee, Philip M. Polgreen, Susan E. Beekmann","doi":"10.3201/eid3107.250295","DOIUrl":"https://doi.org/10.3201/eid3107.250295","url":null,"abstract":"<p>We polled infectious disease specialists about cryptococcal antigen screening for patients initiating HIV antiretroviral therapy. Of 215 respondents, 33% reported typically obtaining screening for patients with CD4 counts <200 cells/mm<sup>3</sup> and 63% for counts <100 CD4 cells/mm<sup>3</sup>. Uncertainty about cryptococcal antigen screening benefits and recommendations suggests opportunities for education and increased screening.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"5 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144176524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tamirat Gebru Woldearegai, Tina Krüger, Sindew Mekasha Feleke, Hassen Mamo, Tesfaye Gelanew, Vanessa Krohmer, Sabine Belard, Peter G. Kremsner, Jana Held, Miriam Rodi, Andrea Kreidenweiss
{"title":"Genomic Deletion of PfHRP2 and PfHRP3 Antigens in Plasmodium falciparum Strains, Ethiopia, 2009","authors":"Tamirat Gebru Woldearegai, Tina Krüger, Sindew Mekasha Feleke, Hassen Mamo, Tesfaye Gelanew, Vanessa Krohmer, Sabine Belard, Peter G. Kremsner, Jana Held, Miriam Rodi, Andrea Kreidenweiss","doi":"10.3201/eid3107.241676","DOIUrl":"https://doi.org/10.3201/eid3107.241676","url":null,"abstract":"<p><em>Plasmodium falciparum</em> strains lacking <em>P. falciparum</em> histidine-rich protein 2 (PfHRP2) and PfHRP3 threaten malaria rapid test reliability. We show that <em>pfhrp2/pfhrp3–</em>deleted parasites circulated in Ethiopia as early as 2009, before widespread PfHRP2-based rapid test use, and had high <em>pfhrp3</em> deletion prevalence. Monitoring of <em>pfhrp2</em> and of <em>pfhrp3</em> deletions is needed.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"128 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gerard C. Kelly, Agus Rachmat, Long Khanh Tran, Chonthida Supaprom, Hip Phireak, Satharath Prom, Heng Sopheab, Nora Cleary, Michael von Fricken, Christina M. Farris, Andrew G. Letizia
{"title":"Clinical Manifestations, Risk Factors, and Disease Burden of Rickettsiosis, Cambodia, 2007–2020","authors":"Gerard C. Kelly, Agus Rachmat, Long Khanh Tran, Chonthida Supaprom, Hip Phireak, Satharath Prom, Heng Sopheab, Nora Cleary, Michael von Fricken, Christina M. Farris, Andrew G. Letizia","doi":"10.3201/eid3106.241752","DOIUrl":"https://doi.org/10.3201/eid3106.241752","url":null,"abstract":"<p>During 2007–2020, we conducted a cross-sectional prevalence study among patients with acute undifferentiated febrile illness to describe the burden and long-term epidemiology of rickettsioses in Cambodia. Serum samples were collected from 10,243 participants, along with epidemiologic data, information on clinical symptoms, demographic characteristics, and risk factors. A total of 802 (7.8%) participants met the definition for acute rickettsial infection after ruling out malaria, influenza, dengue, and chikungunya; 557 (5.4%) cases were typhus, 154 (1.5%) spotted fever, and 136 (1.3%) scrub typhus. Overall seroprevalence was 18.1% (1,857/10,243). Increased age, residence in urban settings, and recent travel to forests were significantly associated with rickettsial infection. Symptoms significantly associated with infection included rash, vomiting, and skin lesions. Our results confirm the underlying burden of rickettsioses and associated risk factors in Cambodia and highlight the need for accessible diagnostics and clinical guidance that consider rickettsioses when treating persons with acute undifferentiated febrile illness.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"9 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kiersten J. Kugeler, Erica Scotty, Austin Earley, Alison F. Hinckley, Sarah A. Hook, Courtney C. Nawrocki, Alexandra M. Linz, Jennifer Meece, Anna M. Schotthoefer
{"title":"Lyme Disease Testing Practices, Wisconsin, USA, 2016–2019","authors":"Kiersten J. Kugeler, Erica Scotty, Austin Earley, Alison F. Hinckley, Sarah A. Hook, Courtney C. Nawrocki, Alexandra M. Linz, Jennifer Meece, Anna M. Schotthoefer","doi":"10.3201/eid3107.250009","DOIUrl":"https://doi.org/10.3201/eid3107.250009","url":null,"abstract":"<p>Positive laboratory results are increasingly used for Lyme disease surveillance in the United States. We found 6%–15% of persons with a positive test each year tested positive in a prior year; repeat testing frequency increased with patient age. Repeat testing of persons with previous seropositivity could affect surveillance data interpretation.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"35 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fatal Acute Hypoxemic Respiratory Failure Caused by Burkholderia thailandensis, China.","authors":"Pei Zhang,Dai Kuang,Shaowen Chen,Wei Liu,Xuehan Duan,Yang Chen,Xuming Wang,Qianfeng Xia,Hua Wu","doi":"10.3201/eid3107.241920","DOIUrl":"https://doi.org/10.3201/eid3107.241920","url":null,"abstract":"We report on a patient in China with no underlying illnesses who died of Burkholderia thailandensis infection despite timely treatment. This case challenges the perception that B. thailandensis is nonlethal or has low virulence. Increased clinical awareness and prompt diagnosis are essential for managing B. thailandensis infections and preventing fatal outcomes.","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"57 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}