Regina Oakley, Simone Kann, Gustavo Concha, Michèle Plag, Sven Poppert, Stephen Graves, Daniel H Paris, Anou Dreyfus
{"title":"Seroprevalence of <i>Rickettsia</i> Spp. and <i>Orientia</i> <i>tsutsugamushi</i> in Indigenous Populations from the Sierra Nevada de Santa Marta, Colombia.","authors":"Regina Oakley, Simone Kann, Gustavo Concha, Michèle Plag, Sven Poppert, Stephen Graves, Daniel H Paris, Anou Dreyfus","doi":"10.1089/vbz.2023.0077","DOIUrl":"10.1089/vbz.2023.0077","url":null,"abstract":"<p><p><b><i>Background:</i></b> <i>Rickettsia</i> spp. are vector-borne zoonotic pathogens that cause febrile illness in humans. Rickettsioses is not included in the Colombian national surveillance system and is subsequently expected to be underreported. This cross-sectional study aimed to determine the seroprevalence of <i>Rickettsia</i> spp. and the closely related <i>Orientia tsutsugamushi</i> in two indigenous populations residing in the Sierra Nevada de Santa Marta, Colombia. <b><i>Materials and Methods:</i></b> Serum samples (<i>n</i> = 539) were collected from the Wiwa and Koguis people between 2021 and 2022. Serum samples were screened for spotted fever group (SFG) and typhus group (TG) <i>Rickettsia</i> spp. using the Fuller laboratories <i>Rickettsia</i> IgG IFA kit and for <i>O. tsutsugamushi</i> with the Scrub Typhus Detect™ IgG ELISA. <b><i>Results:</i></b> We observed an overall seroprevalence of 26.2% (95% confidence interval [CI] 22.5-30.1] for <i>Rickettsia</i> spp. of the SFG, 5.4% (95% CI 3.6-7.6) for <i>Rickettsia</i> spp. of the TG and 4.3% (95% CI 2.7-6.3) for <i>O. tsutsugamushi</i>. Common risk factors for zoonotic disease infections were assessed for 147 of the Wiwa participants. Increased odds of seropositivity for SFG <i>Rickettsia</i> spp. were observed for Wiwa participants who cared for livestock, including assisting with the birth of cattle (odds ratio [OR] = 8.85; 95% CI 1.54-50.90; <i>p</i> = 0.015) and goats (OR = 7.60; 95% CI 1.70-33.90; <i>p</i> = 0.008). <b><i>Conclusions:</i></b> These results highlight a notable exposure to <i>Rickettsia</i> spp., especially the SFG, in rural Colombia. Together with recent reports of high mortality for Rocky Mountain Spotted Fever in nearby regions of South America, more detailed investigations focusing on improving knowledge and awareness as well as \"One Health\" and \"causes-of-fever\" studies are needed. The characterization of <i>Rickettsia</i> spp. infections in humans, livestock, and tick vectors with their potential transmission routes could make a high impact on these easily treatable diseases.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"641-648"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140923214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Genome Characterization of a Tailam Virus Discovered in Brown Rats in Yunnan Province, China.","authors":"Yayu Fan, Yutong Hou, Yimeng Duan, Qian Li, Xiang Le, Jinyong Jiang, Xiang Xu, Binghui Wang, Xueshan Xia","doi":"10.1089/vbz.2024.0007","DOIUrl":"10.1089/vbz.2024.0007","url":null,"abstract":"<p><p><i>Paramyxoviridae</i> is one of the most well known and largest virus families, including some animal and human pathogens, such as the Hendra, Nipah, and Rinderpest viruses, with a high potential for the emergence of human diseases. Based on recent phylogenetic analyses, two new genera (<i>Narmovirus</i> and <i>Jeilongvirus</i>) have been described. The newly recognized genus <i>Jeilongvirus</i> has rapidly increased in number and has grown to 15 species from 7 a few years ago. However, little is known about the diversity, host range, or evolution of <i>Jeilongvirus</i>. As a well-known host reservoir for many pathogens, rodents have always been the focus for characterizing their pathogenic potential. In this study, we isolated a Tailam virus strain (RN-JH-YN-2022-1) belonging to the genus <i>Jeilongvirus</i> from <i>Rattus norvegicus</i> in Yunnan Province, China. The virus presented a near-complete genome (19,046 nucleotides). Similar to other members of the genus <i>Jeilongvirus</i>, the genome of RN-JH-YN-2022-1 contains eight basic genes (3'-N-P/V/C-M-F-SH-TM-G-L-5') with 88.88% sequence identity to Tailam virus (TL8K). Additionally, we discuss the pattern of genus <i>Jeilongvirus</i> diversity and the possible route of spread of the Tailam virus, which could provide new clues into the host range, virus diversity, and geographical distribution of the genus <i>Jeilongvirus</i>.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"689-693"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140853726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lei Zuo, Hengqin Wang, Yadong Tan, Jiang Wan, Wenli Tan, Yulu Gan, Xuewu Xiong, Jun Wang, Chao Luo
{"title":"Co-circulation of Hantavirus, Pathogenic <i>Leptospira</i> spp., and <i>Bartonella</i> spp. in Rodents in the Wanzhou Section of the Three Gorges Reservoir Region, 2021-2023.","authors":"Lei Zuo, Hengqin Wang, Yadong Tan, Jiang Wan, Wenli Tan, Yulu Gan, Xuewu Xiong, Jun Wang, Chao Luo","doi":"10.1089/vbz.2023.0150","DOIUrl":"10.1089/vbz.2023.0150","url":null,"abstract":"<p><p><b><i>Background:</i></b> Rodent is a reservoir of various zoonotic pathogens. Wanzhou section of the Three Gorges reservoir region (TGRR) is a superior habitat for rodents, and the situation of rodent-borne zoonotic pathogens in this region has not been surveyed in recent years. <b><i>Materials and Methods:</i></b> Rodents were night trapped with mousecage or mousetrap in urban and surrounding towns' indoor or outdoor areas of the Wanzhou section of the TGRR, and nucleic acid was extracted from their lung or a mixture of liver, spleen, and kidney. Commercialized qPCR kits for pathogenic <i>Leptospira</i> spp., <i>Rickettsia typhi</i>, <i>Anaplasma phagocytophilum</i>, <i>Bartonella</i> spp., <i>Orientia tsutsugamushi</i>, and <i>Francisella tularensis</i> and qRT-PCR kits for hantavirus (HV), and severe fever with thrombocytopenia syndrome virus (SFTSV) were used for the detection of associated pathogens in collected rodents. <b><i>Results:</i></b> From 2021 to 2023, 604 rodents belonging to 10 species were collected. HV and pathogenic <i>L.</i> spp. were detected positive, with infection rates of 0.66% (4/604) and 1.32% (8/604), respectively. <i>B.</i> spp. were detected positive with an infection rate of 4.73% (19/402) in the rodents trapped in 2022 and 2023. Other five pathogens were all detected negative. <b><i>Conclusion:</i></b> This study showed that the Wanzhou section of the TGRR had HV, pathogenic <i>L.</i> spp., and <i>B.</i> spp. co-circulation in rodents. Hence, more attention should be paid to the prevention and control of associated rodent-borne diseases.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"694-698"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flea-Borne Rickettsioses and Scrub Typhus in Patients with Suspected Arbovirus Infection in Bangkok, Thailand.","authors":"Patthaya Rattanakomol, Sarawut Khongwichit, Yong Poovorawan","doi":"10.1089/vbz.2024.0030","DOIUrl":"10.1089/vbz.2024.0030","url":null,"abstract":"<p><p><b><i>Background:</i></b> In urban Thailand, arboviral infections dominate diagnoses of acute undifferentiated fevers (AUFs) owing to their well-defined epidemiology and characteristic clinical presentations. However, rickettsial diseases, also endemic in this setting, remain under-recognized owing to challenges in early detection. <b><i>Objective:</i></b> This study aimed to identify potential rickettsial infections among patients with AUF in Bangkok and vicinity utilizing leftover nucleic acid extracted from serum samples from patients initially suspected of but negative for arbovirus infections. <b><i>Materials and Methods:</i></b> A total of 609 nucleic acid samples were screened for rickettsial bacteria using real-time PCR, targeting the 17-kDa common antigen gene of <i>Rickettsia</i> spp. and the 47-kDa gene of <i>Orientia tsutsugamushi</i>. <b><i>Results:</i></b> Nine samples were positive for <i>Rickettsia</i> spp. and two were positive for <i>O. tsutsugamushi</i>. DNA sequence and phylogenetic analyses based on partial 17-kDa antigen and citrate synthase (<i>gltA</i>) genes identified the <i>Rickettsia</i>-positive samples as <i>R. typhi</i> in eight cases and <i>R. felis</i> in one case. Analysis of the 56-kDa type-specific antigen gene identified the two <i>O. tsutsugamushi</i> isolates as Gilliam-related genotypes. Although rickettsial diseases typically present with mild symptoms, two patients with <i>R. typhi</i> infection (murine typhus) developed respiratory distress syndrome, highlighting the potential for rare but serious complications. <b><i>Conclusion:</i></b> This study underscores the critical importance of differential diagnosis and prompt, effective intervention to prevent complications in suspected cases.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"649-655"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141471037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johana Alaverdyan, Seyma S Celina, Miloslav Jirků, Marina Golovchenko, Jignesh Italiya, Libor Grubhoffer, Natalie Rudenko, Jiří Černý
{"title":"A First Look at the Relationship Between Large Herbivore-Induced Landscape Modifications and <i>Ixodes ricinus</i> Tick Abundance in Rewilding Sites.","authors":"Johana Alaverdyan, Seyma S Celina, Miloslav Jirků, Marina Golovchenko, Jignesh Italiya, Libor Grubhoffer, Natalie Rudenko, Jiří Černý","doi":"10.1089/vbz.2023.0146","DOIUrl":"10.1089/vbz.2023.0146","url":null,"abstract":"<p><p><b><i>Background:</i></b> While the influence of landscape and microclimatic conditions on tick populations is well-documented, there remains a gap in more specific data regarding their relationship to rewilding efforts with large herbivore activity. <b><i>Objective:</i></b> This pilot study, spanning from 2019 to 2021, explores the effects of naturalistic grazing by large semi-wild ungulates on tick abundance in the Milovice Reserve, Czechia. <b><i>Methods:</i></b> Tick collection was observed using flagging techniques at two distinct sites of rewilding area: one grazed, actively utilized by animals involved in the rewilding project, and one ungrazed, left fallow in neighboring areas utilized only by wild animals. Transects, each measuring 150 m in length and 5 m in width (750 m<sup>2</sup>), were established at these two sampling locations from March to September between 2019 and 2021. To minimize potential bias resulting from tick movement, a 300 m buffer zone separated the two sites. Data analysis employed a generalized estimating equations (GEE) model with negative binomial regression. The study assessed potential variations in tick abundance between selected transects, considering factors such as plant cover seasonality, temperature, and humidity. <b><i>Results:</i></b> During the collection periods, we gathered 586 live ticks, with 20% found in grazed areas and 80% in ungrazed areas. Notably, tick abundance was significantly higher in ungrazed areas. Peaks in tick abundance occurred in both grazed and ungrazed areas during spring, particularly in April. However, tick numbers declined more rapidly in grazed areas. Microclimatic variables like temperature and humidity did not significantly impact tick abundance compared to landscape management and seasonal factors. <b><i>Conclusion:</i></b> Rewilding efforts, particularly natural grazing by large ungulates, influence tick abundance and distribution. This study provides empirical data on tick ecology in rewilded areas, highlighting the importance of landscape management and environmental factors in tick management and conservation. Trophic rewilding plays a crucial role in shaping ecosystems and tick population dynamics in transformed landscapes.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"666-672"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adam J Vera, Albert G Soliz, Camilo E Khatchikian, Antonio de la Mora-Covarrubias, Douglas M Watts, Philip Lavretsky
{"title":"Genomic Analysis of <i>Aedes aegypti</i> in the Northern Chihuahuan Desert of Texas and Mexico.","authors":"Adam J Vera, Albert G Soliz, Camilo E Khatchikian, Antonio de la Mora-Covarrubias, Douglas M Watts, Philip Lavretsky","doi":"10.1089/vbz.2023.0111","DOIUrl":"10.1089/vbz.2023.0111","url":null,"abstract":"<p><p><b><i>Background:</i></b> Aedes aegypti, is the primary vector of dengue, Chikungunya, Zika, and yellow fever viruses. Both natural and human-impacted landscapes have selective pressures on Ae. aegypti, resulting in strong genomic structure even within close geographical distances. <b><i>Materials and Methods:</i></b> We assess the genetic structure of this medically important mosquito species at the northern leading edge of their distribution in Southwestern USA. Ae. aegypti were collected during 2017 in the urban communities of El Paso and Sparks, Texas (USA) and in the city of Ciudad Juárez, Mexico. <b><i>Results:</i></b> Thousands of nuclear loci were sequenced across 260 captured Ae. aegypti. First, we recovered the genetic structure of Ae. aegypti following geography, with all four major collection communities being genetically distinct. Importantly, we found population structure and genetic diversity that suggest rapid expansion through active-short distance dispersals, with Anapra being the likely source for the others. Next, tests of selection recovered eight functional genes across six outliers: calmodulin with olfactory receptor function; the protein superfamily C-type lectin with function in mosquito immune system and development; and TATA box binding protein with function in gene regulation. <b><i>Conclusion:</i></b> Despite these populations being documented in the early 2000s, we find that selective pressures on specific genes have already occurred and likely facilitate Ae. aegypti range expansion.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"673-681"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Seroprevalence and Risk Factors of <i>Toxoplasma gondii</i> Infection of Cattle and Goats in Farms of Hunan Province, China.","authors":"Ping Shen, Ping-Yuan Xu","doi":"10.1089/vbz.2023.0120","DOIUrl":"10.1089/vbz.2023.0120","url":null,"abstract":"<p><p><b><i>Background:</i></b> Toxoplasmosis is one of the most widespread foodborne parasitic zoonoses caused by the obligate intracellular protozoan <i>Toxoplasma gondii</i>. Although a number of studies have reported on the seroprevalence and risk factors of <i>T. gondii</i> infection in ruminants in China, information about <i>T. gondii</i> infection in cattle in Hunan province of China is not available. <b><i>Material and Methods:</i></b> Sera of 985 cattle and 1147 goats were examined for the presence of specific antibodies against <i>T. gondii</i> using the indirect hemagglutination test. Some risk factors related to the presence of cats, herd size, gender, age, and geographical origin were determined using a binary logistic regression. <b><i>Results:</i></b> Specific IgG against <i>T. gondii</i> were detected in 8.3% (82/985) and 13.3% (153/1147) of the cattle and goats, respectively. Based on statistical analysis, the presence of cats and gender were considered important risk factors for <i>T. gondii</i> infection in cattle and goats in the farms in this study (<i>P</i> < 0.05). <b><i>Conclusion:</i></b> Our results provide a baseline for future prevention and control of <i>T. gondii</i> infection in cattle and goats in Hunan province, subtropical China. This is the first report of <i>T. gondii</i> seroprevalence in cattle in Hunan province, China.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"710-713"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Riaz, Shun-Chung Chang, Zahida Tasawar, Muhammad Sajid, Nasreen Nasreen, Itzel Amaro-Estrada, Raquel Cossío-Bayúgar, José de la Fuente, Abdullah D Alanazi, Chien-Chin Chen, Adil Khan, Mourad Ben Said
{"title":"Molecular Epidemiology and Phylogeny of <i>Theileria ovis</i> and <i>Theileria lestoquardi</i> in Sheep and Goats from Southern Punjab, Pakistan.","authors":"Muhammad Riaz, Shun-Chung Chang, Zahida Tasawar, Muhammad Sajid, Nasreen Nasreen, Itzel Amaro-Estrada, Raquel Cossío-Bayúgar, José de la Fuente, Abdullah D Alanazi, Chien-Chin Chen, Adil Khan, Mourad Ben Said","doi":"10.1089/vbz.2023.0118","DOIUrl":"10.1089/vbz.2023.0118","url":null,"abstract":"<p><p><b><i>Background:</i></b> <i>Theileria</i> spp. are responsible for ovine and caprine theileriosis, leading to significant morbidity and mortality in small ruminants. The present study aims to investigate <i>Theileria</i> spp. infections in small ruminants from Southern Punjab in Pakistan, and genetic characterize revealed <i>Theileria</i> spp. isolates. <b><i>Methods:</i></b> A total of 93 sheep and 107 goats were sampled between May and August 2022. Blood smears were examined microscopically, and PCR amplification targeting the 18S rRNA gene was performed to detect <i>Theileria</i> spp. Additionally, specific PCR assays targeting 18S rRNA and <i>ms1</i> partial sequences were used to identify <i>Theileria ovis</i> and <i>T. lestoquardi</i>, respectively. <b><i>Results:</i></b> The prevalence of <i>Theileria</i> spp. was significantly higher using PCR (13.5%) compared to microscopic screening (5%). Sheep showed a higher prevalence rate (19.4%) compared to goats (8.4%) (<i>p</i> = 0.024). Young sheep aged ≤ 1 year were more commonly infected with <i>Theileria</i> spp. (41%) compared to older sheep (<i>p</i> = 0.006). The prevalence of <i>Theileria</i> spp. was higher in sheep-only herds (37.3%) compared to goat-only herds (18%) or mixed-species herds (8.1%) (<i>p</i> = 0.015). The prevalence rates of <i>T. ovis</i> and <i>T. lestoquardi</i> were 9% and 2.5%, respectively, with four animals (2 goats and 2 sheep) showing co-infection. Phylogenetic analysis revealed that our <i>T. ovis</i> 18S rRNA sequence clustered with previously reported sequences from sheep in Turkey, China, Spain, and goats in Tanzania. The obtained <i>T. lestoquardi ms1</i> partial sequence formed a distinct cluster from other <i>T. lestoquardi</i> isolates in Pakistan and neighboring countries. <b><i>Conclusion:</i></b> <i>Theileria</i> spp. co-circulation in Pakistani small ruminants, particularly the presence of <i>T. ovis</i> and <i>T. lestoquardi</i>, highlights the need for attention from animal health decision-makers due to their financial and health impacts.</p>","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":" ","pages":"656-665"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140923274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ji-Yeong Ku,Youngwoo Jung,Youngjun Kim,Kyoung-Seong Choi,Jinho Park
{"title":"Prevalence of Anaplasma Spp. and Theileria Spp. Antigens and Antibodies in Housed and Grazing Korean Indigenous Cattle.","authors":"Ji-Yeong Ku,Youngwoo Jung,Youngjun Kim,Kyoung-Seong Choi,Jinho Park","doi":"10.1089/vbz.2024.0060","DOIUrl":"https://doi.org/10.1089/vbz.2024.0060","url":null,"abstract":"Background: Infection with tick-borne pathogens (TBPs) causes anemia, jaundice, and growth retardation in cattle. Many studies have conducted antigen (Ag) tests for major TBPs, such as Anaplasma spp. and Theileria spp., in Korean indigenous cattle (KIC); however, few studies have analyzed antibodies (Ab) against these pathogens. Materials and Methods: This study simultaneously tested 15 housed cattle raised indoor for over a year and 67 grazing cattle for Anaplasma spp. and Theileria spp. Ag using polymerase chain reaction analysis and Ab using enzyme-linked immunosorbent assay. Results: The A. phagocytophilum was detected in 3 housed cattle (20.0%) and 30 grazing cattle (44.8%), whereas the T. orientalis was detected in 3 housed cattle (20.0%) and 54 grazing cattle (80.6%). The positivity rates for Anaplasma spp. Ab did not differ significantly between housed and grazing cattle (4 out of 15 [93.3%] and 55 out of 67 [80.0%], respectively). The positivity rates for Theileria spp. Ab were higher in grazing cattle than in housed cattle (21 of 67 [31.3%] and 0 out of 15 [0.0%], respectively) (P < 0.01). No difference was observed between the frequency of grazing and the abundance of Ab against either pathogen. Meanwhile, as a result of comparing the detection of pathogen Ag and Ab, Anaplasma spp. showed the highest proportions of 73.3% and 47.8% in Ag (-)/Ab (+) for housed cattle and grazing cattle, respectively. Theileria spp. showed the highest rates of 80.0% in Ag (-)/Ab (-) for housed cattle and 52.2% in Ag (+)/Ab (-) for grazing cattle. Conclusions: This is the first study to determine the impact of antibody abundance against Anaplasma spp. and Theileria spp. on antigen prevalence in KIC.","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":"138 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bin Hu,Jiamin Wang,Ye Wang,Yi Li,Bo Wang,Chen Xiang,Yanan Xing,Shuyi Han,Guohui Yuan,Hongxuan He
{"title":"The First Report of Sphaerirostris picae Infection in the Oriental Magpie (Pica serica) in Beijing, China.","authors":"Bin Hu,Jiamin Wang,Ye Wang,Yi Li,Bo Wang,Chen Xiang,Yanan Xing,Shuyi Han,Guohui Yuan,Hongxuan He","doi":"10.1089/vbz.2023.0101","DOIUrl":"https://doi.org/10.1089/vbz.2023.0101","url":null,"abstract":"Background: Sphaerirostris picae is a parasitic species known for its ability to infect and transmit between hosts in the gastrointestinal tracts of wild avian species. However, there is limited information on its presence and impact on urban avian populations, particularly in China. Materials and Methods: In this study, morphological observations were conducted to detect the presence of Sphaerirostris sp. within the intestinal tract of the Oriental Magpie (Pica serica) collected in Beijing, China. Further confirmation of the parasite's identity was achieved through phylogenetic analysis using COX1 gene sequencing to compare with previously documented Sphaerirostris picae isolates. Results: The morphological and molecular analyses confirmed the presence of Sphaerirostris picae in the Oriental Magpie. Phylogenetic analysis indicated a close relationship with known Sphaerirostris picae isolates. This represents the first reported case of Sphaerirostris picae infection in magpies from Beijing, China. Conclusion: The findings highlight the potential health hazards posed by Sphaerirostris picae to urban avian populations and public health. The study suggests that additional research and surveillance efforts are necessary to better understand the risks associated with this parasite and to develop effective mitigation strategies.","PeriodicalId":23683,"journal":{"name":"Vector borne and zoonotic diseases","volume":"207 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142197821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}