IJID One Health最新文献

{"title":"Modeling the impact of environmental conditions on airborne virus spread: implications for public health and climate change","authors":"Mahmoud Aljord ,&nbsp;Marwan Al-Raeei","doi":"10.1016/j.ijidoh.2026.100106","DOIUrl":"10.1016/j.ijidoh.2026.100106","url":null,"abstract":"<div><h3>Objectives</h3><div>This study aims to investigate how environmental physical factors, specifically temperature, influence the transmission dynamics of airborne viral pathogens, including SARS-CoV-2 and SARS-CoV-1.</div></div><div><h3>Design/methods</h3><div>The research employs integrated physical and epidemiological models, such as the Environmental Factor-Based Transmission-Rate Model, Wells-Riley infection probability framework, and the susceptible-infected-recovered model. Simulations were conducted using the MATLAB Ordinary Differential Equation 45 (ODE45) solver to ensure high accuracy over extended periods.</div></div><div><h3>Results</h3><div>The simulations reveal a significant temperature-dependent pattern in viral transmission. At low temperatures (around 0 °C), viral activity is minimal, resulting in negligible infection peaks. Optimal transmission occurs at moderate temperatures (15–25 °C), with maximum stability and increased airborne transmission, peaking around 22.2 °C. Conversely, temperatures above 30 °C lead to a sharp decline in infection rates, with near-complete inactivation at temperatures exceeding 38.9 °C.</div></div><div><h3>Conclusions</h3><div>The findings indicate that environmental temperature is a critical factor in modulating viral transmission, with intermediate temperatures facilitating outbreaks and extreme heat serving as a natural disinfectant. The study highlights the need for effective environmental management strategies to mitigate airborne transmission risks and underscores the importance of incorporating environmental parameters into epidemiological models for improved public health interventions.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100106"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188808","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":"Heterogeneity in malaria transmission dynamics across eco-climatic facies in Manjo and Manengoteng, Cameroon","authors":"Rolyne Sorelle Wakam Noubou ,&nbsp;Jean Arthur Mbida Mbida ,&nbsp;Herman Parfait Awono-Ambene ,&nbsp;Ornella Carole Ghariegam ,&nbsp;Rachel Ngaha ,&nbsp;Francis Noël Nopowo Takap ,&nbsp;Odette Etoile Ngo-Hondt ,&nbsp;Serge Romeo Mbongue ,&nbsp;Idriss Nasser Ngangue Siewe ,&nbsp;Diane Leslie Nkahe ,&nbsp;Paulette Ndjeunia Mbiakop ,&nbsp;Loick Pradel Kojom Foko ,&nbsp;Fru Chi Tchampo ,&nbsp;Steve Joko ,&nbsp;Wolfgang Ekoko ,&nbsp;Borel Djiappi Tchamen ,&nbsp;Carmene Sandra Ngandeu ,&nbsp;Arnold Princewil Chi Nji ,&nbsp;Helene Gaëlle Kaminsi Nenkam ,&nbsp;Christelle Laura Lowe Toukam ,&nbsp;Patrick Akono Ntonga","doi":"10.1016/j.ijidoh.2026.100103","DOIUrl":"10.1016/j.ijidoh.2026.100103","url":null,"abstract":"<div><h3>Objectives</h3><div>Tailored vector control strategies require entomological insights specific to each ecological setting. In the borough of Manjo, such data are unavailable. Hence, this study aims to document entomologic data for this borough relating to the identity of vectors, their role in malaria transmission, and variation between different sites.</div></div><div><h3>Methods</h3><div>Mosquitoes were collected using the human landing catches method and they were identified using specific keys and polymerase chain reaction. Infectivity was determined by enzyme-linked immunosorbent assay.</div></div><div><h3>Results</h3><div>Overall, 1766 mosquitoes belonging to five genera (<em>Anopheles, Culex, Aedes, Mansonia,</em> and <em>Erethmapodites</em>) and five <em>Anopheles</em> species were collected. <em>Anopheles</em> represented 36.0% (n = 636) of these and <em>Culex</em> represented 58.1% (n = 1026)<em>.</em> In Manengoteng, <em>Anopheles funestus</em> s.l. were more prevalent (60.3%), followed by <em>Anopheles gambiae</em> s.l. (24.5%), and showed more exophilic behavior. In Manjo, <em>Culex quinquefasciatus</em> (94.4%), which is more endophilic, was most abundant, followed by <em>Anopheles gambiae</em> s.l. (2.2%). A high density of <em>Anopheles</em> was registered during the rainy season (79.87%). Malaria was only transmitted during this season by <em>Anopheles gambiae</em> s.s. (entomological inoculation rate [EIR] = 0.05 ib/p/n), <em>Anopheles funestus</em> s.s. (EIR = 0.02 ib/p/n) at Manengoteng, and <em>Anopheles coluzzii</em> (EIR= 0.02 ib/p/n) at Manjo.</div></div><div><h3>Conclusions</h3><div>High species diversity is driving persistent transmission despite widespread use of long-lasting insecticidal nets.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100103"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037812","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":"Ecological drivers and mosquito abundance suggest high Rift Valley fever risk in Eastern Ethiopia","authors":"Dadi Marami ,&nbsp;Adane Mihret ,&nbsp;Nega Assefa ,&nbsp;Alemseged Abdissa ,&nbsp;Adargachew Mulu ,&nbsp;Rea Tschopp","doi":"10.1016/j.ijidoh.2026.100110","DOIUrl":"10.1016/j.ijidoh.2026.100110","url":null,"abstract":"<div><h3>Objectives</h3><div>Rift Valley fever (RVF) virus is a mosquito-borne zoonosis of public health importance. High RVF virus immunoglobulin G seroprevalence has been reported among humans and livestock in Ethiopia. However, data on mosquito abundance and their infection status remain limited. This study assessed mosquito abundance, ecological drivers, and RVF virus infection status in Eastern Ethiopia.</div></div><div><h3>Methods</h3><div>A community-based cross-sectional study was conducted in the Shinile District and Dire Dawa Administration, Eastern Ethiopia, from April 1 to September 30, 2023. Adult mosquitoes were collected indoors and outdoors using light traps and Prokopack aspirators. Larvae were collected from water-holding containers and reared to adulthood in a controlled insectary environment. Mosquitoes were identified to the genus/species level based on their morphological characteristics. <em>Aedes</em>, <em>Culex</em>, and <em>Anopheles</em> were the target mosquito genera. Female mosquitoes of these genera were pooled and screened for RVF virus RNA using reverse transcription–polymerase chain reaction.</div></div><div><h3>Results</h3><div>Of the 12,773 mosquitoes collected, 7811 (61.2%) were the target genera. Of these, 4094 (52.4%) were females. Among the female mosquitoes of the target genera, <em>Anopheles</em> were the most abundant (2367, 30.3%), followed by <em>Culex</em> (1154, 14.8%) and <em>Aedes</em> (573, 7.3%). Mosquito abundance increased with rainfall (r = 0.53–0.68) and decreased with temperature. Among the 1760 water-holding containers inspected for the presence of larvae, 247 (14.0%) harbored larvae. Barrels 29 (3.7%) and birkads (large, cemented water tanks) 8 (3.3%) were the major <em>Aedes</em> breeding containers. All 168 pooled samples tested negative for RVF virus.</div></div><div><h3>Conclusions</h3><div>Potential mosquito species were abundant despite the absence of detectable viral RNA. The increase in adult mosquitoes with rainfall poses an ecological risk for RVF virus emergence. Targeted elimination of mosquito breeding containers and longitudinal One Health–based surveillance are recommended to monitor and detect cryptic transmission.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100110"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147397156","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":"Commemorating the World Antimicrobial Resistance Awareness Week 2025: Key insights and lessons from the International Society for Infectious Diseases’ ProMED-AMR 2024 reporting","authors":"Mohamed M. Sirdar,&nbsp;Julia Maxwell,&nbsp;Ghassan M. Matar,&nbsp;Tin Tin Myaing,&nbsp;Salma Ferchichi,&nbsp;Linda MacKinnon,&nbsp;Jarod Hanson","doi":"10.1016/j.ijidoh.2025.100093","DOIUrl":"10.1016/j.ijidoh.2025.100093","url":null,"abstract":"","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100093"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538340","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":"Q Fever Controversies","authors":"Robert Norton","doi":"10.1016/j.ijidoh.2025.100096","DOIUrl":"10.1016/j.ijidoh.2025.100096","url":null,"abstract":"","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100096"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538765","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":"Highly pathogenic avian influenza virus infections in mammals: patterns, predictions, and implications for human epidemics","authors":"Steven A. Baranowitz ,&nbsp;Preeti Choubey ,&nbsp;Wenyu Wu ,&nbsp;Arnav Choubey","doi":"10.1016/j.ijidoh.2026.100104","DOIUrl":"10.1016/j.ijidoh.2026.100104","url":null,"abstract":"<div><div>The continuing spread of avian influenza virus through the animal kingdom, particularly, in mammals, represents an imminent worldwide threat with the potential to mutate into a significant human pandemic. We recognized the need for tools to quantitatively describe and predict the courses of sequential individual waves of infection in mammals to facilitate future allocation of resources for combating the spread. Using public data from the US Department of Agriculture for about a 2-year period, we showed that the Gompertz equation is an effective tool for describing each of the three epidemic waves during that period. The nature of these regression equations is that early data can be used to predict the number of future cases, time course, and inflection point of individual waves. In comparing the parameters of the resulting regressions, we noticed that the waves became more exponential in character and less sigmoidal (less tendency to level off) as they progressed in time.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100104"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037811","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":"Molecular typing of adenoviruses associated with respiratory illness among humans and poultry, Pakistan","authors":"Jamil Ansari ,&nbsp;Emily R. Robie ,&nbsp;Emily S. Bailey ,&nbsp;Nazish Badar ,&nbsp;Farooq Tahir ,&nbsp;Lyudmyla V. Marushchak ,&nbsp;Judith U. Oguzie ,&nbsp;Gregory C. Gray","doi":"10.1016/j.ijidoh.2026.100108","DOIUrl":"10.1016/j.ijidoh.2026.100108","url":null,"abstract":"<div><h3>Objectives</h3><div>This pilot study sought to examine the distribution of circulating adenovirus types among humans and other animals in Pakistan.</div></div><div><h3>Methods</h3><div>Patients with influenza-like illness or pneumonia at seven hospitals were enrolled and sampled (oropharyngeal or nasopharyngeal swabs), and their epidemiological data were collected. Concomitantly, livestock with respiratory symptoms in live bird markets and farms were also sampled. These specimens were screened for evidence of adenovirus infection.</div></div><div><h3>Results</h3><div>Of 1705 total samples, 96 (8.8%) of 1084 humans and 15 (4%) of 385 poultry had molecular evidence of adenovirus. Infection in humans was significantly associated with wheezing, coughing, fever, and sore throat, and prevalence was greatest among participants residing outside Punjab. Genetic sequencing identified co-circulation of human-like adenovirus (HAdV-7) and HAdV-3 strains among humans. Further sequencing identified HAdV-C1, HAdV-5, HAdV-89, HAdV-12, and HAdV-56. Bovine adenovirus 2 was unexpectedly detected in a human nasal swab. Among poultry, fowl aviadenovirus (FAdV)-4 and FAdV-11 were identified.</div></div><div><h3>Conclusions</h3><div>Compared with other studies, there was a relatively high prevalence of adenoviruses among sick humans and poultry, with the unusual discovery of bovine adenovirus in a sick human’s airway. There was considerable diversity among detected adenovirus strains. Given periodic adenovirus outbreaks in Pakistan, monitoring types in respiratory illness is key.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100108"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188810","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":"Comparative epidemiological analysis of the 2023 and 2025 Marburg virus disease outbreaks in Kagera Region, Tanzania","authors":"Sima Rugarabamu ,&nbsp;Baraka L. Ngingo ,&nbsp;Elison E. Kemibala ,&nbsp;Gaspary Mwanyika","doi":"10.1016/j.ijidoh.2025.100094","DOIUrl":"10.1016/j.ijidoh.2025.100094","url":null,"abstract":"<div><h3>Objectives</h3><div>Marburg virus disease (MVD) is a severe zoonotic hemorrhagic fever with high case fatality rates (CFR). Tanzania's Kagera Region experienced MVD outbreaks in 2023 and 2025, offering critical insights into evolving epidemiological trends and the effectiveness of response strategies. This study compares these outbreaks to inform future preparedness.</div></div><div><h3>Methods</h3><div>We conducted a retrospective analysis of official situation reports from the Tanzanian Ministry of Health, the World Health Organization (WHO), and other health authorities. Data on sociodemographic, CFR, transmission dynamics, response metrics (alerts, samples, contacts), and response timelines were analyzed using descriptive statistics, chi-square, and <em>t</em> tests. The time-varying reproduction number (Re) was estimated using the EpiEstim R package.</div></div><div><h3>Results</h3><div>The 2025 outbreak had a significantly higher CFR (100 %) compared to 2023 (66.7 %) (<em>P</em> &lt;0.05). Demographic shifts included a decrease in median age from 35 to 30 years and a reversal in sex distribution, with women more affected in 2025 (70 %) vs men in 2023 (66.7 %) (<em>P</em> = 0.03). The outbreak epicenter shifted from Bukoba to Biharamulo district. While the scale of response increased dramatically in 2025 (alerts: 131 to 1218; samples tested: 78 to 202), the initial response was delayed, with a longer interval from symptom onset to outbreak declaration (37 days in 2025 vs 10 days in 2023) and initial diagnostic confusion. Mean Re was &lt;1 throughout the 2023 outbreak but exceeded 1 mid-epidemic in 2025.</div></div><div><h3>Conclusions</h3><div>The 2025 outbreak was characterized by increased lethality and distinct demographic shifts. The response demonstrated a significant scale-up in surveillance and international coordination. However, critical challenges in early detection, diagnostic confirmation, and the efficiency of converting alerts into traced contacts highlight the need for a balanced strategy that couples technological innovation with fundamental strengthening of health system core functions.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799642","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":"One Health and antimicrobial resistance in Somalia: policy insights from Centennial Vision 2060","authors":"Shafie Abdulkadir Hassan ,&nbsp;Nur Rashid Ahmed ,&nbsp;Abdifetah Ibrahim Omar ,&nbsp;Kassim Abdi Jimale","doi":"10.1016/j.ijidoh.2026.100111","DOIUrl":"10.1016/j.ijidoh.2026.100111","url":null,"abstract":"<div><h3>Objectives</h3><div>This study aimed to assess the extent to which Somalia’s Centennial Vision 2060 (CV2060) provides a strategic framework for addressing antimicrobial resistance (AMR) and advancing a One Health approach. Unlike previous epidemiologic assessments, this study uniquely positions AMR containment as a function of state-building, focusing on governance, human capital, and health system integration.</div></div><div><h3>Methods</h3><div>A qualitative document analysis was conducted on the official English-language version of CV2060, treating the policy as a social fact. Using the Walt and Gilson policy triangle framework, the analysis examined the document across four dimensions: context, content, actors, and process. To ensure methodologic rigor, the text was independently coded by two reviewers against three predefined domains, with discrepancies resolved through consensus. Data were managed using a matrix analysis approach.</div></div><div><h3>Results</h3><div>Analysis revealed four inter-related themes relevant to AMR: (1) strengthening health system governance and regulatory capacity, (2) human capital development in health and veterinary sectors, (3) integrated One Health vision, and (4) digital transformation and data systems. Specific policy levers identified include the potential for digital import tracking to monitor antibiotic consumption and the use of judicial reform to criminalize unlicensed pharmaceutical sales. Although AMR is not explicitly mentioned, CV2060 provides foundational mechanisms that can support AMR prevention.</div></div><div><h3>Conclusions</h3><div>CV2060 establishes a scientifically and operationally viable framework to support AMR mitigation and One Health integration in Somalia. To operationalize this, the study recommends establishing a cross-sectoral AMR steering committee within the CV2060 implementation unit and explicitly integrating antimicrobial stewardship competencies into the proposed national curriculum.</div></div>","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100111"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147396622","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":"Infectious disease eradication—the pinnacle of public health achievement","authors":"David N. Durrheim ,&nbsp;Jon K. Andrus ,&nbsp;Shahina Tabassum","doi":"10.1016/j.ijidoh.2026.100107","DOIUrl":"10.1016/j.ijidoh.2026.100107","url":null,"abstract":"","PeriodicalId":100655,"journal":{"name":"IJID One Health","volume":"10 ","pages":"Article 100107"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147397158","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}