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Transmission Pathways of Zoonotic Influenza Viruses and Influencing Factors: A Systematic Review of Recent Findings. 人畜共患流感病毒的传播途径及其影响因素:最近研究结果的系统综述。
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-17 DOI: 10.3390/v17060857
Rebecca Badra, Wenqing Zhang, John S L Tam, Richard Webby, Sylvie van der Werf, Sergejs Nikisins, Ann Cullinane, Saad Gharaibeh, Richard Njouom, Malik Peiris, Ghazi Kayali, Jean-Michel Heraud
{"title":"Transmission Pathways of Zoonotic Influenza Viruses and Influencing Factors: A Systematic Review of Recent Findings.","authors":"Rebecca Badra, Wenqing Zhang, John S L Tam, Richard Webby, Sylvie van der Werf, Sergejs Nikisins, Ann Cullinane, Saad Gharaibeh, Richard Njouom, Malik Peiris, Ghazi Kayali, Jean-Michel Heraud","doi":"10.3390/v17060857","DOIUrl":"10.3390/v17060857","url":null,"abstract":"<p><p>Recent outbreaks of zoonotic influenza viruses underscored the need for a deeper understanding of transmission pathways and factors influencing spillover events. Understanding the combined effects of environmental conditions, host interactions, and viral adaptations is essential for effective preparedness and response. The WHO public health research agenda for influenza, revised in 2017, recommended research to further define the host-to-host transmission pathways of influenza type A viruses. Since 2017, important research has been conducted, and the global health landscape has changed. Therefore, there is a need to review the transmission pathway studies conducted during the last eight years. We conducted a systematic analysis following the PRISMA guidelines on 7490 PubMed records from 2017 to 2024, of which 219 records were retained. This review evaluates research on zoonotic influenza virus transmission among wild and domestic animals and cross-species transmission to humans. By examining pathways, host, environmental, and viral factors, this review identified key findings and research gaps. Research remains limited in critical areas including transmission pathways among diverse animals, role of environmental factors, and zoonotic potential across regions. Addressing these gaps is essential for improving public health strategies. This review highlights the necessity of integrating a One Health approach in addressing zoonotic influenza risks.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197345/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surveillance of Respiratory Pathogens Among Rapid Diagnostic Test-Negative Acute Respiratory Infection Patients in Myanmar in 2023, with a Focus on Rhinovirus and Enterovirus Genotyping. 2023年缅甸急性呼吸道感染快速诊断试验阴性患者呼吸道病原体监测,重点是鼻病毒和肠病毒基因分型
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-17 DOI: 10.3390/v17060860
Yuyang Sun, Tsutomu Tamura, Yadanar Kyaw, Swe Setk, Moe Myat Aye, Htay Htay Tin, Su Mon Kyaw Win, Jiaming Li, Tri Bayu Purnama, Irina Chon, Keita Wagatsuma, Hisami Watanabe, Reiko Saito
{"title":"Surveillance of Respiratory Pathogens Among Rapid Diagnostic Test-Negative Acute Respiratory Infection Patients in Myanmar in 2023, with a Focus on Rhinovirus and Enterovirus Genotyping.","authors":"Yuyang Sun, Tsutomu Tamura, Yadanar Kyaw, Swe Setk, Moe Myat Aye, Htay Htay Tin, Su Mon Kyaw Win, Jiaming Li, Tri Bayu Purnama, Irina Chon, Keita Wagatsuma, Hisami Watanabe, Reiko Saito","doi":"10.3390/v17060860","DOIUrl":"10.3390/v17060860","url":null,"abstract":"<p><p>This study explored the distribution and genetic characteristics of respiratory pathogens in outpatients with acute respiratory infections (ARIs) in Yangon, Myanmar, during the 2023 rainy season. Among 267 patients who tested negative for influenza, RSV, and SARS-CoV-2 using rapid diagnostic tests, 84.6% were positive for at least one pathogen according to a multiplex polymerase chain reaction (PCR) assay, the BioFire<sup>®</sup> FilmArray<sup>®</sup> Respiratory Panel 2.1. The most common viruses detected were rhinovirus/enterovirus (RV/EV) at 37.8%, respiratory syncytial virus (RSV) at 22.4%, and human metapneumovirus (hMPV) at 10.0%. These pathogens co-circulated mainly from July to September, with RV/EV consistently predominant. Symptom comparison among RV/EV-, RSV-, and hMPV-infected patients showed similar clinical features, though fever was more common in hMPV cases. Among RV/EV-positive patients, 59.3% had single infections, while 40.7% experienced co-infections, especially with RSV and adenovirus. Genotyping identified 28 types from five species, primarily RV-A and RV-C, which were genetically diverse. One EV-D68 case was also found, emphasizing its potential risk. This study underscores the genetic diversity and clinical impact of RV/EV and stresses the importance of ongoing molecular surveillance in Myanmar's post-COVID-19 context to inform effective public health responses.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197359/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a Quadruplex RT-qPCR Assay for Rapid Detection and Differentiation of PRRSV-2 and Its Predominant Genetic Sublineages in China. 快速检测和分化PRRSV-2及其显性遗传亚系的四重RT-qPCR方法的建立
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060853
Guishan Ye, Siyu Xiong, Zhipeng Su, Guosheng Chen, Siyuan Liu, Zixuan Wang, Huanchun Chen, Anding Zhang
{"title":"Development of a Quadruplex RT-qPCR Assay for Rapid Detection and Differentiation of PRRSV-2 and Its Predominant Genetic Sublineages in China.","authors":"Guishan Ye, Siyu Xiong, Zhipeng Su, Guosheng Chen, Siyuan Liu, Zixuan Wang, Huanchun Chen, Anding Zhang","doi":"10.3390/v17060853","DOIUrl":"10.3390/v17060853","url":null,"abstract":"<p><strong>Background: </strong>Porcine Reproductive and Respiratory Syndrome (PRRS) is a highly contagious disease characterized by reproductive failure in sows and severe respiratory disorders across all swine ages, causing significant economic losses. In China, the PRRSV epidemiological landscape is complex, with the coexistence of multiple lineages and frequent recombination. The major circulating strains include sublineages 1.8 (NADC30-like PRRSV) and 1.5 (NADC34-like PRRSV), along with lineages 8 (HP-like PRRSV) and 5 (VR2332-like PRRSV), highlighting the urgent need for rapid detection and lineage differentiation.</p><p><strong>Methods: </strong>A quadruplex RT-qPCR assay was developed targeting lineage-specific deletions in the NSP2 gene to simultaneously detect PRRSV-2 and differentiate NADC30-like PRRSV, HP-like PRRSV, and NADC34-like PRRSV strains. The assay was optimized with respect to reaction conditions, including annealing temperature, primers, and probe concentrations. The method's performance was evaluated in terms of specificity, sensitivity, repeatability, stability, limit of detection (LOD), and consistency with sequencing results.</p><p><strong>Results: </strong>The assay demonstrated high sensitivity (LOD of 3 copies/μL), high specificity, and good repeatability (coefficient of variation < 1.5%). Field application using 938 samples from Guangxi A and B farms revealed NADC30-like PRRSV wild-type strains at positivity rates of 13.44% and 3.53%, respectively. Positive samples selected for sequencing were further confirmed using ORF5-based phylogenetic analysis and NSP2 deletion pattern comparison, which aligned with RT-qPCR detection results. Field application primarily detected NADC30-like PRRSV, while further validation is still needed for HP-like and NADC34-like strains. The developed quadruplex RT-qPCR assay enables rapid and simultaneous detection of PRRSV-2 and differentiation of three major lineages, providing a sensitive, specific, and reliable tool for distinguishing vaccine-derived from circulating strains and supporting targeted disease surveillance and control in swine farms.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197470/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Seroprevalence of Influenza A Virus Infections in Polish Cats During a Feline H5N1 Influenza Outbreak in 2023. 2023年猫H5N1流感爆发期间波兰猫甲型流感病毒感染的血清流行率
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060855
Anna Golke, Tomasz Dzieciątkowski, Olga Szaluś-Jordanow, Michał Czopowicz, Lucjan Witkowski, Monika Żychska, Ewa Domańska, Dawid Jańczak, Tomasz Nalbert, Stephanie Lesceu, Marzena Paszkowska, Justyna Giergielewicz, Tadeusz Frymus
{"title":"The Seroprevalence of Influenza A Virus Infections in Polish Cats During a Feline H5N1 Influenza Outbreak in 2023.","authors":"Anna Golke, Tomasz Dzieciątkowski, Olga Szaluś-Jordanow, Michał Czopowicz, Lucjan Witkowski, Monika Żychska, Ewa Domańska, Dawid Jańczak, Tomasz Nalbert, Stephanie Lesceu, Marzena Paszkowska, Justyna Giergielewicz, Tadeusz Frymus","doi":"10.3390/v17060855","DOIUrl":"10.3390/v17060855","url":null,"abstract":"<p><p>Recently, cats have emerged as potential incidental hosts for avian and human influenza A viruses (IAVs), including the highly pathogenic avian influenza (HPAI) H5N1 virus. Following an unprecedented outbreak of H5N1 HPAI in cats in Poland in June 2023, we conducted a cross-sectional epidemiological study to assess the seroprevalence of IAV, especially H5Nx, infections in domestic cats. Eight hundred thirty-five serum samples collected in June 2023 were tested using a competitive ELISA for antibodies to IAV nucleoprotein. Positive or doubtful samples were further screened for H5-specific antibodies. The overall seropositivity for IAV was 8.5% (CI 95%: 6.8%, 10.6%; 71/835 cats), and 23/68 IAV-seropositive cats (33.8%) were also seropositive for H5 antigen. Multivariable analysis identified young age (≤8 years) and male sex as significant risk factors for H5 seropositivity, while non-H5-IAV seropositivity was more common in cats aged ≥12 years. These findings suggest different exposure pathways and host risk profiles for H5 and non-H5 IAVs and underscore the importance of enhanced surveillance in cats, particularly in regions affected by HPAI outbreaks. Given the susceptibility of cats to both avian and human IAVs, including subclinical infections, there is a theoretical risk for viral reassortment. Preventive measures, including vaccinating humans and restricting outdoor access for cats, should be considered in endemic areas.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197795/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Persistence and Active Replication Status of Oropouche Virus in Different Body Sites: Longitudinal Analysis of a Traveler Infected with a Strain Spreading in Latin America. Oropouche病毒在不同身体部位的持久性和活跃复制状态:对拉丁美洲传播的一株感染旅行者的纵向分析。
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060852
Andrea Matucci, Elena Pomari, Antonio Mori, Silvia Accordini, Natasha Gianesini, Rebeca Passarelli Mantovani, Federico Giovanni Gobbi, Concetta Castilletti, Maria Rosaria Capobianchi
{"title":"Persistence and Active Replication Status of Oropouche Virus in Different Body Sites: Longitudinal Analysis of a Traveler Infected with a Strain Spreading in Latin America.","authors":"Andrea Matucci, Elena Pomari, Antonio Mori, Silvia Accordini, Natasha Gianesini, Rebeca Passarelli Mantovani, Federico Giovanni Gobbi, Concetta Castilletti, Maria Rosaria Capobianchi","doi":"10.3390/v17060852","DOIUrl":"10.3390/v17060852","url":null,"abstract":"<p><p>An unprecedented outbreak of Oropouche virus (OROV) is occurring in the Americas, characterized by thousands of confirmed cases and a wide geographical spread, including areas outside the Amazon Basin. Little is known about this neglected arbovirus regarding its pathophysiological aspects and potentially different transmission modes. This study describes the clinical course of a man who returned from a trip to Cuba and presented to our hospital 4 days after the onset of febrile symptoms. The patient was diagnosed with Oropouche fever and was followed for 177 days after the onset of symptoms. We performed a longitudinal investigation of the samples collected from several body sites (whole blood, serum, urine, and semen) with the aim of providing further insights into OROV infection dynamics, using the detection of antigenomic RNA as a marker of active viral replication. Clinical samples that were longitudinally collected over the course of OROV infection showed consistently higher amounts of antigenomic RNA compared to genomic RNA, even after viral clearance from serum. Moreover, our case study showed the persistence of OROV RNA in serum of less than 15 days from the onset of symptoms, as compared to up to one month in urine, three months in semen, and four months in whole blood. Our study suggests that Oropouche virus may persist in an actively replicating state in different body sites for long periods of time, with important implications for transmission dynamics. Furthermore, our results provide a diagnostic indication, suggesting that serum is inferior to both urine and whole blood as preferred diagnostic samples. Further studies are needed to determine the pathogenetic implications of these findings, as they have been derived from a single case and must be confirmed using a larger number of cases.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197401/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrative Computational Approaches for Understanding Drug Resistance in HIV-1 Protease Subtype C. 理解HIV-1蛋白酶C亚型耐药的综合计算方法
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060850
Sankaran Venkatachalam, Nisha Muralidharan, Ramesh Pandian, Yasien Sayed, M Michael Gromiha
{"title":"Integrative Computational Approaches for Understanding Drug Resistance in HIV-1 Protease Subtype C.","authors":"Sankaran Venkatachalam, Nisha Muralidharan, Ramesh Pandian, Yasien Sayed, M Michael Gromiha","doi":"10.3390/v17060850","DOIUrl":"10.3390/v17060850","url":null,"abstract":"<p><p>Acquired immunodeficiency syndrome (AIDS) is a chronic disease condition caused by the human immunodeficiency virus (HIV). The widespread availability of highly active antiretroviral therapies has helped to control HIV. There are ten FDA-approved protease inhibitors (PIs) that are used as part of antiretroviral therapies in HIV treatment. Importantly, all these drugs are designed and developed against the protease (PR) from HIV subtype B. On the other hand, HIV-1 PR subtype C, which is the most dominant strain in countries including South Africa and India, has shown resistance to PIs due to its genetic diversity and varied mutations. The emergence of resistance is concerning because the virus continues to replicate despite treatment; hence, it is necessary to develop drugs specifically against subtype C. This review focuses on the origin, genetic diversity, and mutations associated with HIV-1 PR subtype C. Furthermore, computational studies performed on HIV-1 PR subtype C and mutations associated with its resistance to PIs are highlighted. Moreover, potential research gaps and future directions in the study of HIV-1 PR subtype C are discussed.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197794/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intersegment Recombination During Influenza A Virus Replication Gives Rise to a Novel Class of Defective Viral Genomes. 甲型流感病毒复制过程中的片段间重组产生了一类新的缺陷病毒基因组。
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060856
Soraya Anisi, George Noble, Rory Williams, Jack Hales, Hannah E Bridgewater, Andrew Easton, William Collier, Phillip Gould
{"title":"Intersegment Recombination During Influenza A Virus Replication Gives Rise to a Novel Class of Defective Viral Genomes.","authors":"Soraya Anisi, George Noble, Rory Williams, Jack Hales, Hannah E Bridgewater, Andrew Easton, William Collier, Phillip Gould","doi":"10.3390/v17060856","DOIUrl":"10.3390/v17060856","url":null,"abstract":"<p><p>Influenza A virus (IAV) is a highly diverse pathogen with genetic variability primarily driven by mutation and reassortment. Using next-generation sequencing (NGS), we characterised defective viral genomes (DVGs) generated during the serial passaging of influenza A/Puerto Rico/8/1934 (H1N1) virus in embryonated chicken eggs. Deletions were the most abundant DVG type, predominantly accumulating in the polymerase-encoding segments. Notably, we identified and validated a novel class of multisegment DVGs arising from intersegment recombination events, providing evidence that the IAV RNA polymerase can detach from one genomic template and resume synthesis on another. Multisegment recombination primarily involved segments 1-3 but also occurred between other segment pairings. In specific lineages, certain multisegment DVGs reached high frequencies and persisted through multiple passages, suggesting they are not transient by-products of recombination but may possess features that support stable maintenance. Furthermore, multisegment DVGs were shown to be encapsidated within virions, similar to deletion DVGs. The observation of recombination between segments with limited sequence homology underscores the potential for complex recombination to expand IAV genetic diversity. These findings suggest recombination-driven DVGs represent a previously underappreciated mechanism in influenza virus evolution.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197472/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect on Mortality of Bacterial Co-Infections on Critically Ill Patients with Community-Acquired COVID-19 and Influenza Pneumonia: A Systematic Review. 社区获得性COVID-19合并流行性肺炎重症患者细菌合并感染对死亡率的影响:系统评价
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060851
Apostolos A Menis, Efrosyni Gerovasileiou, Konstantinos Mantzarlis, Efstratios Manoulakas, Konstantina Deskata, Vasileios Vazgiourakis, Demosthenes Makris, George Dimopoulos
{"title":"The Effect on Mortality of Bacterial Co-Infections on Critically Ill Patients with Community-Acquired COVID-19 and Influenza Pneumonia: A Systematic Review.","authors":"Apostolos A Menis, Efrosyni Gerovasileiou, Konstantinos Mantzarlis, Efstratios Manoulakas, Konstantina Deskata, Vasileios Vazgiourakis, Demosthenes Makris, George Dimopoulos","doi":"10.3390/v17060851","DOIUrl":"10.3390/v17060851","url":null,"abstract":"<p><p><b>Background:</b> Bacterial co-infections in patients with viral pneumonia might increase mortality. In this study we aimed to evaluate their effect on the mortality of critically ill patients with viral pneumonia. <b>Methods:</b> A systematic search was conducted in PubMed, Web of Science, Scopus and Cochrane from inception until 30 March 2025. We included studies comparing the effect on mortality of bacterial co-infections in critically ill patients with viral pneumonia. The risk of bias was assessed by the Newcastle-Ottawa Scale. <b>Results:</b> From 3643 studies, 10 were included in our study with a total of 2862 COVID-19 patients and 4573 influenza patients. Seven studies were retrospective and three prospective. In total, 359/2862 of the COVID-19 and 904/4573 of the influenza patients were co-infected. Co-infections increased mortality in five out of the six studies evaluating COVID-19 patients and in two out of the eight studies evaluating influenza patients. <b>Conclusions:</b> The majority of the included studies were retrospective, which may limit the accuracy of these results. The exclusion of non-English literature may have led to the omission of relevant data. Based on our results, the impact of bacterial co-infection may be more pronounced in patients with COVID-19 pneumonia admitted to the ICU than in patients with influenza pneumonia.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197689/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of Endemic Region for Severe Fever with Thrombocytopenia Syndrome in an Alluvial Plain of Hebei Province, China. 河北省冲积平原发热伴血小板减少综合征流行地区的鉴定
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-16 DOI: 10.3390/v17060854
Yanan Cai, Yamei Wei, Luling Li, Minghao Geng, Yan Zheng, Xinyang Zhang, Zhanying Han, Yanbo Zhang, Yonggang Xu, Xu Han, Qi Li
{"title":"Identification of Endemic Region for Severe Fever with Thrombocytopenia Syndrome in an Alluvial Plain of Hebei Province, China.","authors":"Yanan Cai, Yamei Wei, Luling Li, Minghao Geng, Yan Zheng, Xinyang Zhang, Zhanying Han, Yanbo Zhang, Yonggang Xu, Xu Han, Qi Li","doi":"10.3390/v17060854","DOIUrl":"10.3390/v17060854","url":null,"abstract":"<p><p>Severe fever with thrombocytopenia syndrome (SFTS), an emerging infectious tick-borne viral disease, is increasingly affecting human beings worldwide. SFTS monitoring has been carried out since 2010 in mainland China. Since 2022, an increase in local cases has been noted in the central coastal plain region of Hebei Province. This study aimed to identify the endemic region in the central coastal plain region by epidemiological characteristics, antibody surveillance and molecular characterization. Case data were obtained from the Chinese Disease Control and Prevention Information System. Serum samples from suspected or clinically diagnosed cases, the indigenous healthy population and native domesticated animals were collected for laboratory tests, along with ticks in the central coastal plain region of Hebei Province, China. The local cases were mainly distributed in Cangzhou City, located at the central coastal plain region of Hebei Province. The 0.68% of IgM antibody detection rate and 1.71% of IgG antibody detection rate in this study showed the potential existence of subclinical or mild infections in Cangzhou. Phylogenetic analysis indicated that all sequences from patients, ticks and sheep clustered within the F subtype, exhibiting a close evolutionary relationship and the possible circulation of SFTSV having established among animal hosts and ticks in Cangzhou. These findings first identify the natural focus of SFTSV in the central plain region of Hebei Province, highlighting enhanced surveillance measures for preventing and controlling SFTSV.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197592/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Delayed Early Antiretroviral Therapy Initiation on Treatment Outcomes in Infant Macaques Exposed to SHIVAD8. 延迟早期抗逆转录病毒治疗开始对暴露于SHIVAD8的幼猴治疗结果的影响。
IF 3.8 3区 医学
Viruses-Basel Pub Date : 2025-06-14 DOI: 10.3390/v17060849
Li Ma, Yoshiaki Nishimura, Xueling Wu, Olivia Donau, Eunice Vincent, Hong Lu, Robert V Blair, Lara A Doyle-Meyers, Malcolm Martin, Ronald S Veazey, Huanbin Xu, Xiaolei Wang
{"title":"Impact of Delayed Early Antiretroviral Therapy Initiation on Treatment Outcomes in Infant Macaques Exposed to SHIVAD8.","authors":"Li Ma, Yoshiaki Nishimura, Xueling Wu, Olivia Donau, Eunice Vincent, Hong Lu, Robert V Blair, Lara A Doyle-Meyers, Malcolm Martin, Ronald S Veazey, Huanbin Xu, Xiaolei Wang","doi":"10.3390/v17060849","DOIUrl":"10.3390/v17060849","url":null,"abstract":"<p><p>Infants born to HIV-positive mothers remain at significant risk of HIV acquisition despite maternal adherence to antiretroviral therapy, cesarean delivery, and formula feeding. Our previous study reported that initiating early antiretroviral treatment at three days post-SIV infection resulted in approximately eighty percent of pediatric virologic remission. In this study, we investigated treatment outcomes in postnatally SHIV-exposed infant macaques when early intervention was delayed by two days, as well as the mechanisms underlying virologic control. The results showed that, although initiating treatment at five days post-exposure effectively suppressed viral replication, only one of the three infant macaques achieved a sustained state of virologic remission following analytical treatment interruption. Notably, this virus-controlled infant lacked detectable virus-specific immunity, including neutralizing antibodies, cytotoxic T cell responses, and antibody-dependent cellular cytotoxicity. These findings highlight the critical importance of early treatment initiation as a key determinant of virologic control in HIV-exposed, infected infants. This study provides valuable insights for guiding early pediatric HIV intervention strategies in clinical settings.</p>","PeriodicalId":49328,"journal":{"name":"Viruses-Basel","volume":"17 6","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12197331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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