Ecohealth最新文献

{"title":"A Simplified, CRISPR-Based Method for the Detection of Batrachochytrium salamandrivorans.","authors":"Brandon D Hoenig, Philipp Böning, Amadeus Plewnia, Corinne L Richards-Zawacki","doi":"10.1007/s10393-024-01690-x","DOIUrl":"10.1007/s10393-024-01690-x","url":null,"abstract":"<p><p>The fungal pathogen Batrachochytrium salamandrivorans (Bsal) is one of two species (the other, B. dendrobatidis/Bd) that cause amphibian chytridiomycosis, an emerging infectious disease that has been indicated in the declines of hundreds of amphibian species worldwide. While Bd has been near globally distributed for decades, Bsal is a more recently emerged pathogen, having been identified just over a decade ago with current impacts localized to salamandrids in parts of Europe. However, because there is concern that Bsal will cause widespread declines if introduced to naïve regions-such as the Americas where the greatest diversity of salamandrids exist-it is imperative that widespread monitoring strategies be implemented to mitigate the spread of Bsal. As standard molecular diagnostic approaches-such as qPCR-tend to be expensive, time-consuming, or require specialized instrumentation and training, we have developed a simplified, rapid, CRISPR-based approach for Bsal-DNA detection. Here, we demonstrate this approach-termed FINDeM (Field-deployable, Isothermal, Nucleotide-based Detection Method)-and show that it can detect clinically relevant concentrations of Bsal DNA in under an hour using only inexpensive supplies and body-heat inducible reactions. Further, we highlight drawbacks and limitations associated with FINDeM-such as decreased DNA extraction yields and detection sensitivity when compared to more traditional approaches-and provide suggestions for additional development and future application of this method.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"161-171"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142752164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of Distinct Rodent-Associated Adenovirus Lineages from Mixed-Use Landscape.","authors":"B R Ansil, Avirup Sanyal, Darshan Sreenivas, Kritika M Garg, Uma Ramakrishnan, Balaji Chattopadhyay","doi":"10.1007/s10393-025-01700-6","DOIUrl":"10.1007/s10393-025-01700-6","url":null,"abstract":"<p><p>Land-use change and increased human-livestock-wildlife interactions have generated numerous possibilities for viral spillover, demanding enhanced surveillance in biodiverse regions. We investigated adenovirus diversity in small mammals, an understudied host taxon, from a forest-plantation mosaic in the Western Ghats biodiversity hotspot. We observed high prevalence (up to 39.39%) and identified five lineages of adenoviruses with unique mutations in the dominant small mammal species, Rattus satarae. These lineages significantly differed from other known murine adenoviruses (p-distance > 25%), indicating the likelihood of novel adenoviruses in this endemic small mammal and suggesting potential for unexplored DNA virus diversity in the region.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"5-10"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climatically Specialized Lineages of Batrachochytrium dendrobatidis, and its Likely Asian Origins.","authors":"Dan Sun, Gajaba Ellepola, Jayampathi Herath, Hong Liu, Yewei Liu, Kris Murray, Madhava Meegaskumbura","doi":"10.1007/s10393-025-01698-x","DOIUrl":"10.1007/s10393-025-01698-x","url":null,"abstract":"<p><p>Chytridiomycosis is a wildlife disease that has caused significant declines in amphibian populations and species extinctions worldwide. Asia, where the causal pathogens Batrachochytrium dendrobatidis (Bd) and B. salamndrivorans (Bsal) originated, has not witnessed mass die-offs. It is hypothesized that Asian amphibians may have evolved immunity to clinical Batrachochytrium infection, but this has not been explored in depth due to limited knowledge of endemic lineages and infection patterns. We investigated Bd's genetic diversity and infection patterns in south China's Guangxi region using the internal transcribed spacer (ITS) marker and nested PCR. Across the 17 forest sites studied (N = 1088 individuals; 1012 adults and 76 tadpoles), the overall prevalence of Bd infection was 4.74% in adult individuals and 5.26% in tadpoles. We found seven new haplotypes, four of which were closely related to the BdASIA-1 lineage from South Korea. The most prevalent haplotype (genetically similar to BdASIA-3) was found in 11 out of 15 infected species, including a salamander with non-lethal skin lesions. A generalized linear model of our environmental data indicates that Bd infection is correlated with mean temperature of the warmest quarter and elevation, with higher infection prevalence associated with lower temperature and relatively higher elevation in southern China. Our findings suggest significant undiscovered genetic diversity of Asian Bd lineages in this region. Longer-term studies are required to further investigate Bd diversity, prevalence, seasonality, and impact on native species and populations in Southern China and across the region of origin in Asia.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"91-107"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pathways to One Health: Enhancing Inter-Sectoral Collaboration in Pakistan.","authors":"Muhammad Ahmed Abdullah, Babar Tasneem Shaikh","doi":"10.1007/s10393-024-01696-5","DOIUrl":"10.1007/s10393-024-01696-5","url":null,"abstract":"<p><p>One Health is an integrative approach aiming to achieve optimal health outcomes by recognizing the interconnection between humans, animals, and the environment. This study explores the understanding, perspectives, hurdles, and implications of intersectoral collaboration within Pakistan's human health system, focusing on One Health principles. A qualitative phenomenological approach was employed, involving 17 key informant interviews with purposively selected stakeholders from public health, agriculture, veterinary medicine, agriculture and environmental science. Thematic analysis was conducted to generate themes. There are varying levels of understanding and awareness of One Health principles, with some showing strong comprehension; while, others showed significant knowledge gaps. Barriers such as institutional silos, fragmented policies, and limited resources were identified for operationalizing the intersectoral collaboration requisite for One Health. Successful collaborative initiatives demonstrated the potential of One Health in achieving significant health outcomes. Meaningful engagement of stakeholders and capacity building emerged as critical needs, with recommendations for continuous in-service training centered on One Health principles. Unified policies, strengthened institutional support, and continuous capacity building will enhance One Health agenda. Overarching governance and decentralized decision-making processes can promote consistency and cooperation across sectors for advancing One Health initiatives and effectively addressing complex human health challenges in Pakistan.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"138-146"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142933392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Serologic and Molecular Evidence of Arboviruses in Nonhuman Primates in Northeast Brazil.","authors":"Illaira Leydira Carvalho Bandeira, Marlos Gomes Martins, Alessandra da Conceição Miranda Santos, Camille Ferreira de Oliveira, Éder Barros Dos Santos, Franko de Arruda E Silva, Jannifer Oliveira Chiang, Pedro Fernando da Costa Vasconcelos, Patricia Avello Nicola","doi":"10.1007/s10393-024-01695-6","DOIUrl":"10.1007/s10393-024-01695-6","url":null,"abstract":"<p><p>Arbovirus surveillance in marmosets (Callithrix spp.) that live close to humans helps identify viral circulation in the environment and contributes to public health. We investigated the exposure to arboviral infections in 47 captive and free-living Callithrix from urban and peri-urban areas in the semiarid region of northeastern Brazil (SNB) in 2018. The samples were tested for antibodies against 23 arbovirus antigens and the presence of Orthoflavivirus zikaense (ZIKV), Orthoflavivirus denguei, Alphavirus chikungunya, and Orthoflavivirus flavi using hemagglutination inhibition (HI) and RT-qPCR assays. HI highlighted three samples seropositivity for Flavivirus (3/47; 6,4%). One of these samples displayed monotypic antibodies to Alphavirus eastern (formerly known as Eastern equine encephalitis virus; genus Alphavirus). RT-qPCR revealed that one sample (1/41; 2.4%) of C. jacchus captured in a commercial area of Petrolina-PE was positive for ZIKV. Our results indicated that marmosets living close to humans in the SNB were exposed to arboviruses, with the identification of ZIKV, even after the largest epidemic of the virus in the country and the subsequent human cases reduction. Here, we reinforce the importance of both continuous arboviruses monitoring in wildlife and preserving natural habitats to promote public health and biodiversity conservation.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"29-41"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142973127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-epidemiological Survey of Trypanosoma cruzi in Dogs from Mendoza, Argentina.","authors":"Melisa E Morales, Rubén Cimino, Juan P Mackern-Oberti, Catalina Muñoz-San Martín, Pedro E Cattan, Mariella Superina","doi":"10.1007/s10393-024-01693-8","DOIUrl":"10.1007/s10393-024-01693-8","url":null,"abstract":"<p><p>Urban domestic dog populations can provide important clues about the eco-epidemiological characteristics of Trypanosoma cruzi, the causative agent of Chagas disease (ChD). Given the limited data on ChD from the Metropolitan Area of Mendoza, Argentina, a seroprevalence survey of 327 dogs across an urban-rural gradient was conducted between April 2018 and May 2019. Seropositive cases were analyzed considering host, social, and environmental factors, subtypes (DTUs), and bloodstream parasite load. Seroprevalence of infection by T. cruzi total antigens (ELISA-H) was similar in urban (18%), interface (14%), and rural (21%) areas. Serotyping (recombinant TSSA-II antigen ELISA) revealed that 61% (37/61) of seropositive dogs carried the subtypes TcII, V and/or VI. There was no difference in the proportion of seropositive dogs versus seronegative dogs that lived with a person with ChD (9/62 = 14% vs. 35/265 = 13%, respectively). Parasite loads in seropositive dogs varied between < 0.10 and 1.18 parasite-equivalents/ml. Dogs with T. cruzi infection were in good health and nutritional condition, suggesting that they may have indeterminate or chronic stage infections. High infection rates in all areas and limited knowledge of owners about ChD and its triatomine vectors emphasize the need to intensify entomological studies, especially in urban areas, and promote vector information campaigns. This work shows that screening of dogs is a beneficial epidemiological tool to deepen studies on ChD from a One Health perspective.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"79-90"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142980616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interactions Between Humans and White-Tailed Deer in Illinois: A Cross-Sectional Survey.","authors":"Ambrielle Pratt, Tara Prezioso, Nohra Mateus-Pinilla, Kimberly M Pepin, Rebecca Smith","doi":"10.1007/s10393-024-01694-7","DOIUrl":"10.1007/s10393-024-01694-7","url":null,"abstract":"<p><p>SARS-CoV-2 has been found in multiple species, including cervids such as wild white-tailed deer (WTD), in multiple regions in the United States, including Illinois. The virus has been shown to transmit among WTD, and across species in both directions (deer-to-humans and humans-to-deer). Cross-species transmission requires infectious contact between WTD and humans, the form and frequency of which is poorly understood. The aim of this cross-sectional survey was to understand the frequency and type of contact between the general public in the state of Illinois and WTD, and to identify human populations at highest risk for such contact. An online survey was distributed using convenience sampling from list serves, social media, and community partners or extension liaisons. Questions addressed frequency and distance of contact with WTD, encompassing live animals and bodily fluids. Standard and ordinal logistic regression were used to identify factors associated with contact. An overall risk score was calculated, and linear regression was used to identify factors associated with risk. We found that hunters and those who have deer feeding on their property are more likely to report contact with deer, and that people reporting a larger lot size and living in counties with higher proportions of potential deer habitat are more likely to report deer feeding on their property. These results will better identify people with a high likelihood of WTD contact for messaging and further research. Our survey did not distinguish between contact with live and dead WTD, thus the findings are most relevant to deer-to-human cross-species transmission than the human-to-deer direction.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"147-160"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12344729/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forest Fragmentation and Warmer Climate Increase Tick-Borne Disease Infection.","authors":"Hayato Iijima, Yuya Watari, Kandai Doi, Kazuhiro Yasuo, Kimiko Okabe","doi":"10.1007/s10393-025-01702-4","DOIUrl":"10.1007/s10393-025-01702-4","url":null,"abstract":"<p><p>Anthropogenic disturbances degrade ecosystems, elevating the risk of emerging infectious diseases from wildlife. However, the key environmental factors for preventing tick-borne disease infection in relation to host species, landscape components, and climate conditions remain unknown. This study focuses on identifying crucial environmental factors contributing to the outbreak of severe fever with thrombocytopenia syndrome (SFTS), a tick-borne disease, in Miyazaki Prefecture, southern Japan. We collected data on SFTS case numbers, annual temperature and precipitation, species richness of large- and middle-sized mammals, forest perimeter length (indicating the amount of forest boundaries), percentage of agricultural land, human population, and sightseeing place numbers for each 25 km² grid cell encompassing Miyazaki Prefecture. Through the construction of a model incorporating these factors, we found that longer forest perimeter and higher temperature led to a higher number of SFTS cases. Precipitation, mammal species richness, percentage of agricultural land, human population, and sightseeing point numbers had no effect on SFTS case numbers. In conclusion, climate condition and forest fragmentation, which increase the opportunity for human infection, played a pivotal role in SFTS outbreak.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"124-137"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143043281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring of Selected Swine Viral Diseases in Peruvian Amazon Peccaries.","authors":"Maria F Menajovsky, Pedro Mayor, Richard Bodmer, Pedro Pérez-Peña, Gabriela M Ulloa, Alex D Greenwood, Stephanie Montero, Andrés G Lescano, Meddly L Santolalla, Joaquim Segalés, Marina Sibila, Oscar Cabezón, Johan Espunyes","doi":"10.1007/s10393-024-01692-9","DOIUrl":"10.1007/s10393-024-01692-9","url":null,"abstract":"<p><p>Peccaries (collared peccary-CP-and white-lipped peccary-WLP) are an essential source of protein and income for rural communities in the Amazon region. Since 1980s, researchers in the Amazon have reported recurrent local disappearances of WLP populations. Although such disappearances impact the species conservation and the food security of rural societies, no studies have drawn consistent conclusions about the causes of these population collapses. However, it has recently been proposed that the overabundance of this species before its decline would be related to infectious disease outbreaks. In the current study, we aimed to determine the circulation (occurrence and exposure) of viruses relevant to swine health in CP and WLP populations, namely classical swine fever virus (CSFV), Aujeszky's disease virus (ADV), swine vesicular disease virus (SVDV), and porcine circoviruses (PCV). The study was conducted in two areas of the northeastern Peruvian Amazon: the Yavarí-Mirín River basin (2008 -2020), where WLPs experienced extreme population fluctuations, and the Pucacuro National Reserve (2012-2014), where no WLP disappearances have been reported. Since WLP is not easily found during population declines, we also sampled CP as an indicator of virus circulation in the area as they are likely to be susceptible to the same pathogens. CSFV and ADV antibodies were detected in both peccary species and both areas. Diseases caused by CSFV and ADV have the potential to act as ultimate causes of population collapse, especially in large WLP populations where overabundance could increase the rate of pathogen transmission. Our results were inconclusive in establishing whether or not these viruses drove the WLP population to collapse, but their potential role warrants deeper investigation, expanding the geographical coverage of studies on infectious diseases in peccaries.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"69-78"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11890321/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142973116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Outbreak of SARS-CoV-2 in Captive Armadillos Associated with Gamma Variant in Argentina.","authors":"Franco Lucero Arteaga, Mercedes Nabaes Jodar, Mariela Mondino, Ana Portu, Mónica Boeris, Ana Jolly, Ana Jar, Silvia Mundo, Eliana Castro, Diego Alvarez, Carolina Torres, Mariana Viegas, Ana Bratanich","doi":"10.1007/s10393-024-01686-7","DOIUrl":"10.1007/s10393-024-01686-7","url":null,"abstract":"<p><p>The current pandemic produced by SARS-CoV-2 and its variants represent an example of the one health concept in which humans and animals are components of the same epidemiologic chain. Animal reservoirs of these viruses are thus the focus of surveillance programs, to monitor their circulation and evolution in potentially new hosts and reservoirs. In this work, we report the detection of the SARS-CoV-2 Gamma variant infection in four specimens of Chaetophractus villosus (big hairy armadillo/armadillo peludo) in Argentina. In addition to the finding of a new wildlife species susceptible to SARS-CoV-2 infection, the identification of the Gamma variant three months after its last detection in humans in Argentina is a noteworthy result, which can be due to alternative non-exclusive scenarios, such as unidentified viral reservoirs, unrecognized circulation in humans or species-specific variation in incubation periods.</p>","PeriodicalId":51027,"journal":{"name":"Ecohealth","volume":" ","pages":"183-194"},"PeriodicalIF":2.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141285240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}