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Steinrigl A, Willixhofer D, Schindler M, Richter S, Unterweger C, Ahmed AA, van der Linden H, Mende DR, Pucci N, Steinparzer R. Isolation and characterization of Leptospira licerasiae in Austrian swine - a first-time case report in Europe. BMC Vet Res 2024; 20:348. [PMID: 39113014 PMCID: PMC11304667 DOI: 10.1186/s12917-024-04213-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 07/30/2024] [Indexed: 08/11/2024] Open
Abstract
BACKGROUND Leptospiraceae comprise a diverse family of spirochetal bacteria, of which many are involved in infectious diseases of animals and humans. Local leptospiral diversity in domestic animals is often poorly understood. Here we describe the incidental detection of Leptospira (L.) licerasiae in an Austrian pig. CASE PRESENTATION During an experiment to characterize the pathogenesis of L. interrogans serovar Icterohaemorrhagiae in pigs, cultivation of a urine sample from a non-challenged contact pig resulted in growth of a spirochetal bacterium that tested negative for pathogenic Leptospira (LipL32 gene). PCR, Sanger sequencing and standard serotyping further confirmed that the recovered isolate was clearly different from the challenge strain L. interrogans serovar Icterohaemorrhagiae used in the animal experiment. Whole genome sequencing revealed that the isolate belongs to the species L. licerasiae, a tropical member of the Leptospiraceae, with no prior record of detection in Europe. CONCLUSIONS This is the first report describing the occurrence of L. licerasiae in Europe. Since L. licerasiae is considered to have intermediate pathogenicity, it will be important to follow the geographical distribution of this species and its pathogenic and zoonotic potential in more detail.
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Affiliation(s)
- Adi Steinrigl
- Austrian Agency for Health and Food Safety, Institute for Veterinary Disease Control Moedling, Robert Koch Gasse 17, Mödling, 2340, Austria.
| | - Denise Willixhofer
- Austrian Agency for Health and Food Safety, Institute for Veterinary Disease Control Moedling, Robert Koch Gasse 17, Mödling, 2340, Austria
| | - Martin Schindler
- Austrian Agency for Health and Food Safety, Institute for Veterinary Disease Control Moedling, Robert Koch Gasse 17, Mödling, 2340, Austria
| | - Susanne Richter
- Austrian Agency for Health and Food Safety, Institute for Veterinary Disease Control Moedling, Robert Koch Gasse 17, Mödling, 2340, Austria
| | - Christine Unterweger
- Clinical Centre for Farm Animals and Food System Science, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1221, Austria
| | - Ahmed A Ahmed
- Expertise Centre for Reference and Research On Leptospirosis/WOAH Reference Laboratory for Leptospirosis, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, Meibergdreef 39, Amsterdam, 1105 AZ, the Netherlands
| | - Hans van der Linden
- Expertise Centre for Reference and Research On Leptospirosis/WOAH Reference Laboratory for Leptospirosis, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, Meibergdreef 39, Amsterdam, 1105 AZ, the Netherlands
| | - Daniel R Mende
- Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
| | - Nicholas Pucci
- Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
| | - Romana Steinparzer
- Austrian Agency for Health and Food Safety, Institute for Veterinary Disease Control Moedling, Robert Koch Gasse 17, Mödling, 2340, Austria
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Asaduzzaman M, Karmaker L, Rahman A, Rahman MS, Awaul MA, Chakraborty SR. Dengue and leptospirosis coinfection: a case series. J Med Case Rep 2024; 18:370. [PMID: 39107781 PMCID: PMC11304916 DOI: 10.1186/s13256-024-04675-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/22/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Both dengue and Leptospira infections are endemic to tropical and subtropical regions, with their prevalence increasing in recent decades. Coinfection with these pathogens presents significant diagnostic challenges for clinicians due to overlapping clinical manifestations and laboratory findings. This case report aims to elucidate two clinical scenarios where the coinfection of dengue and leptospirosis complicates the disease course, creating a diagnostic conundrum. CASE PRESENTATION We present the clinical scenarios of two Bangladeshi males, aged 25 and 35 years, who were admitted to our hospital with acute febrile illness. The first patient exhibited hepatic and renal involvement, while the second presented with symptoms initially suggestive of meningoencephalitis. Both cases were initially managed under the presumption of dengue infection based on positive serology. However, further evaluation revealed coinfection with Leptospira, complicating the disease course. Both patients received appropriate treatment for dengue and antibacterial therapy for leptospirosis, ultimately resulting in their recovery. CONCLUSION These case scenarios underscore the critical importance for clinicians in regions where dengue and Leptospira are endemic to consider both diseases when evaluating patients presenting with acute febrile illness.
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Affiliation(s)
- Md Asaduzzaman
- Department of Medicine, Sylhet MAG Osmani Medical College Hospital, Sylhet, 3100, Bangladesh.
| | - Liton Karmaker
- Department of Medicine, Sylhet MAG Osmani Medical College Hospital, Sylhet, 3100, Bangladesh
| | - Anisur Rahman
- Department of Medicine, Sylhet MAG Osmani Medical College Hospital, Sylhet, 3100, Bangladesh
| | - Mohammad Salvi Rahman
- Department of Medicine, Sylhet MAG Osmani Medical College Hospital, Sylhet, 3100, Bangladesh
| | - Md Abdul Awaul
- Department of Medicine, Sylhet MAG Osmani Medical College Hospital, Sylhet, 3100, Bangladesh
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Udayanga S, Kankanamge D, Gamage T, Suresh De Zoysa L, Chamathya Y, Bellanthudawa B, Batuwanthudawa S, Ruwanpathirana N, Gayashan N, Gunasekara S, Chandana E. Unraveling Sociocultural Influences on Leptospirosis Incidence and Prevalence: A Qualitative Study in Sri Lanka. Asia Pac J Public Health 2024:10105395241265259. [PMID: 39054807 DOI: 10.1177/10105395241265259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
This study aimed to explore sociocultural determinants that might contribute to the increased prevalence and incidence of leptospirosis, and how those determinants can also hinder health promotion interventions, particularly in rural areas of Sri Lanka. Even though several epidemiological studies have been conducted on leptospirosis in the Asia-Pacific region, the sociocultural background of this disease has not received sufficient attention. Therefore, through a qualitative study involving nine public health officials and 25 infected patients in five selected health administrative divisions, we demonstrate that a set of certain sociocultural determinants influence leptospirosis incidence and its prevalence. The thematic analysis generated six themes: a lack of knowledge of the causes and consequences of leptospirosis, false illness interpretations, a lack of readiness for the disease, poor economic conditions, social capital failure, and issues within the health system at the community level. Overall, results suggest that awareness programs aimed at demystifying false interpretations of leptospirosis lie at the center of any health promotion interventions at the community level.
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Affiliation(s)
- Samitha Udayanga
- Department of Sociology, University of Ruhuna, Matara, Sri Lanka
| | - Dinesha Kankanamge
- School of Humanities, Social Sciences and Law, University of Dundee, Dundee, UK
| | - Thilini Gamage
- Department of Sociology, University of Stockholm, Stockholm, Sweden
| | | | - Yasasi Chamathya
- Department of Sociology, University of Ruhuna, Matara, Sri Lanka
| | - Bka Bellanthudawa
- Department of Agricultural Engineering and Environmental Technology, University of Ruhuna, Matara, Sri Lanka
| | | | | | | | | | - Eps Chandana
- Department of Biosystem Technology, University of Ruhuna, Matara, Sri Lanka
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Han X, Huang B, Yang L, Wu J, Zhang H. Metagenomic next-generation sequencing in the early diagnosis of leptospirosis infection presenting as acalculous cholecystitis and septic shock in a non-epidemic area after typhoons: A case report. Clin Case Rep 2024; 12:e9095. [PMID: 38911922 PMCID: PMC11192643 DOI: 10.1002/ccr3.9095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 06/25/2024] Open
Abstract
Key Clinical Message Leptospirosis is an important zoonosis worldwide. Due to nonspecific clinical manifestation and poor recognition in non-epidemic area, there is often a delay in diagnosis and treatment. Early diagnosis from Metagenomic next-generation sequencing test is crucial for timely intervention. Abstract We presented a case of a 19-year-old male patient who developed leptospirosis infection characterized by acalculous cholecystitis and septic shock after typhoon events. Metagenomic next-generation sequencing (mNGS) helped to early diagnose leptospirosis infection. Finally, the patient achieved full recovery following the antibiotic treatment in addition to supportive care and was discharged.
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Affiliation(s)
- Xueying Han
- Department of Critical Care MedicineShenzhen Nanshan HospitalShenzhenChina
- Department of Critical Care MedicineThe 6th Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Bihan Huang
- Department of CardiologyShenzhen Nanshan HospitalShenzhenChina
- Department of CardiologyThe 6th Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Lilei Yang
- Department of Critical Care MedicineShenzhen Nanshan HospitalShenzhenChina
- Department of Critical Care MedicineThe 6th Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Jinglan Wu
- Department of Critical Care MedicineShenzhen Nanshan HospitalShenzhenChina
- Department of Critical Care MedicineThe 6th Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Haigang Zhang
- Department of Critical Care MedicineShenzhen Nanshan HospitalShenzhenChina
- Department of Critical Care MedicineThe 6th Affiliated Hospital of Shenzhen UniversityShenzhenChina
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Mishra SK, Munne K, Jadhav D, Patil S, Maile A, Salvi N, Chauhan S, Kulkarni R. Laboratory diagnosis and epidemiological features of leptospirosis cases in a tribal region of Western Maharashtra, India: A retrospective study. Indian J Med Microbiol 2024; 50:100641. [PMID: 38825011 DOI: 10.1016/j.ijmmb.2024.100641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/15/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
PURPOSE Palghar district, located in the coastal region of the Konkan division of Maharashtra, has a predominantly tribal population. Leptospirosis is a major neglected public health problem and is highly underreported in Palghar district. The study aimed to evaluate the seropositivity of Leptospira infection and its associated epidemiological factors in tribal areas of the Palghar district of Maharashtra. METHODS The present retrospective study included 94 samples of patients clinically suspected of leptospirosis during a period of one year (2021-2022) tested at Model Rural Health Research Unit (MRHRU) Dahanu. The serum sample testing was done for the presence of specific Leptospira IgM antibodies using the Panbio™ Leptospira IgM ELISA kit. Leptospirosis seropositivity was correlated with various epidemiological risk factors. RESULTS A total of 12 samples of patients tested positive for specific IgM antibodies by ELISA method, indicating an overall positivity of 12.8%. Among those who tested positive, fever (83.3%), headache (58.3%), myalgia (50%), redness of the eyes (50%), and calf tenderness (16.7%) were the common symptoms observed. Subjects with redness of the eyes were significantly associated with leptospirosis (p = 0.018). The highest positivity (50%) was reported from the Ganjad area of Dahanu taluka. Farmers and animal handlers were most affected by leptospirosis. CONCLUSION The high proportion of Leptospirosis cases reflects the endemic nature of the disease in the Palghar district. This study shows seasonal trends in leptospirosis incidence over the year. The clinical presentation of leptospirosis may vary from sub-clinical to mild illness to severe and potentially fatal. The findings of this study will be important for achieving the overarching goal of One Health.
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Affiliation(s)
- Shailendra Kumar Mishra
- Department of Health Research, Model Rural Health Research Unit (ICMR-NIRRCH), Dahanu, 401601, Maharashtra, India.
| | - Kiran Munne
- Department of Health Research, Model Rural Health Research Unit (ICMR-NIRRCH), Dahanu, 401601, Maharashtra, India; Department of Child Health Research, ICMR-National Institute for Research in Reproductive and Child Health, J Merwanji Street, Parel, Mumbai, 400012, Maharashtra, India.
| | - Dnyaneshwar Jadhav
- Department of Health Research, Model Rural Health Research Unit (ICMR-NIRRCH), Dahanu, 401601, Maharashtra, India
| | - Sagar Patil
- Department of Public Health, Zilla Parishad, Palghar, 401404, Maharashtra, India.
| | - Anwesh Maile
- Department of Health Research, Model Rural Health Research Unit (ICMR-NIRRCH), Dahanu, 401601, Maharashtra, India.
| | - Neha Salvi
- Department of Health Research, Model Rural Health Research Unit (ICMR-NIRRCH), Dahanu, 401601, Maharashtra, India.
| | - Sanjay Chauhan
- Department of Operational and Implementation Research, ICMR-National Institute for Research in Reproductive and Child Health, J Merwanji Street, Parel, Mumbai, 400012, Maharashtra, India.
| | - Ragini Kulkarni
- Department of Health Research, Model Rural Health Research Unit (ICMR-NIRRCH), Dahanu, 401601, Maharashtra, India; Department of Operational and Implementation Research, ICMR-National Institute for Research in Reproductive and Child Health, J Merwanji Street, Parel, Mumbai, 400012, Maharashtra, India.
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Lu X, Westman ME, Mizzi R, Griebsch C, Norris JM, Jenkins C, Ward MP. Are Pathogenic Leptospira Species Ubiquitous in Urban Recreational Parks in Sydney, Australia? Trop Med Infect Dis 2024; 9:128. [PMID: 38922040 PMCID: PMC11209362 DOI: 10.3390/tropicalmed9060128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/28/2024] [Accepted: 06/03/2024] [Indexed: 06/27/2024] Open
Abstract
Leptospirosis is a zoonotic disease caused by the spirochete bacteria Leptospira spp. From December 2017 to December 2023, a total of 34 canine leptospirosis cases were reported in urban Sydney, Australia. During the same spatio-temporal frame, one locally acquired human case was also reported. As it was hypothesised that human residents and companion dogs might both be exposed to pathogenic Leptospira in community green spaces in Sydney, an environmental survey was conducted from December 2023 to January 2024 to detect the presence of pathogenic Leptospira DNA in multipurpose, recreational public parks in the council areas of the Inner West and City of Sydney, Australia. A total of 75 environmental samples were collected from 20 public parks that were easily accessible by human and canine visitors. Quantitative PCR (qPCR) testing targeting pathogenic and intermediate Leptospira spp. was performed, and differences in detection of Leptospira spp. between dog-allowed and dog-prohibited areas were statistically examined. The global Moran's Index was calculated to identify any spatial autocorrelation in the qPCR results. Pathogenic leptospires were detected in all 20 parks, either in water or soil samples (35/75 samples). Cycle threshold (Ct) values were slightly lower for water samples (Ct 28.52-39.10) compared to soil samples (Ct 33.78-39.77). The chi-squared test and Fisher's exact test results were statistically non-significant (p > 0.05 for both water and soil samples), and there was no spatial autocorrelation detected in the qPCR results (p > 0.05 for both sample types). Although further research is now required, our preliminary results indicate the presence of pathogenic Leptospira DNA and its potential ubiquity in recreational parks in Sydney.
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Affiliation(s)
- Xiao Lu
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006, Australia; (X.L.); (M.E.W.); (C.G.); (J.M.N.)
| | - Mark E. Westman
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006, Australia; (X.L.); (M.E.W.); (C.G.); (J.M.N.)
- Elizabeth Macarthur Agricultural Institute (EMAI), Woodbridge Road, Menangle, NSW 2568, Australia; (R.M.); (C.J.)
| | - Rachel Mizzi
- Elizabeth Macarthur Agricultural Institute (EMAI), Woodbridge Road, Menangle, NSW 2568, Australia; (R.M.); (C.J.)
| | - Christine Griebsch
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006, Australia; (X.L.); (M.E.W.); (C.G.); (J.M.N.)
| | - Jacqueline M. Norris
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006, Australia; (X.L.); (M.E.W.); (C.G.); (J.M.N.)
| | - Cheryl Jenkins
- Elizabeth Macarthur Agricultural Institute (EMAI), Woodbridge Road, Menangle, NSW 2568, Australia; (R.M.); (C.J.)
| | - Michael P. Ward
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006, Australia; (X.L.); (M.E.W.); (C.G.); (J.M.N.)
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Cuaño CRG, Cuaño PMGM, Ong JP, Borlongan MAB, Torres JMK, Hernandez ARB, Chua AV. Determination of Liver Function Tests and Liver Ultrasonographic Findings in Patients with Leptospirosis in a Tertiary Hospital. ACTA MEDICA PHILIPPINA 2024; 58:17-25. [PMID: 38966607 PMCID: PMC11219513 DOI: 10.47895/amp.vi0.4918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Introduction Leptospirosis is an important zoonotic disease commonly found in tropical or sub-tropical countries. The most severe form is Weil's syndrome which presents with jaundice, renal failure, and bleeding diatheses. Although jaundice occurs in 38% of patients with leptospirosis, no studies in Asia have focused on the liver biochemical profile of these patients. Characterization of liver biochemical profile and ultrasonographic findings may shed more light on the disease process. Identification of liver biochemical parameters that portend a poor prognosis may also allow for early aggressive intervention. Objective To describe the liver biochemical profile and liver ultrasonographic findings in adult patients with laboratory-confirmed leptospirosis, admitted at a tertiary hospital in Manila, Philippines. The association of clinical and laboratory features with clinical outcomes (i.e., severe liver injury, Weil's syndrome, and mortality) was also investigated. Methods This retrospective cross-sectional study reviewed all available cases of adult patients with laboratory-confirmed leptospirosis admitted in the Philippine General Hospital from January 2009 to August 2018. The clinical features, liver biochemical profiles, and ultrasound findings were recorded and analyzed. Comparison between the means of each group based on clinical outcome (i.e., mortality, Weil's syndrome) was done via Students' t-test for continuous variables, and calculation of the Odds Ratio for categorical variables. Results Total and direct bilirubin levels were elevated in patients with leptospirosis compared to serum amino-transferases and alkaline phosphatase levels which were only mildly elevated. Abdominal ultrasound showed typically un-enlarged livers with normal parenchymal echogenicity, normal spleens, and non-dilated biliary trees. Dyspnea was associated with an increased odds for mortality. Although jaundice was present in 39.5% of patients and significantly associated with severe liver injury, this was not associated with mortality. Liver biochemical test values did not differ among patients who expired and those who survived to discharge. The presence of myalgia and abdominal pain increased the odds for Weil's syndrome. Conclusion To date, no local studies have fully described the liver biochemical profile of patients with leptospirosis. Our findings are compatible with previous studies showing that leptospirosis typically presents with predominantly elevated direct bilirubin from cholestasis and systemic infection. Contrary to previous literature, however, our study found no association between jaundice and mortality.
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Affiliation(s)
- Carlos Rolando G. Cuaño
- Department of Physiology, College of Medicine, University of the Philippines Manila
- Division of Gastroenterology, Department of Medicine, Philippine General Hospital, University of the Philippines Manila
| | | | - Janus P. Ong
- Division of Gastroenterology, Department of Medicine, Philippine General Hospital, University of the Philippines Manila
| | | | - John Mark K. Torres
- Division of Gastroenterology, Department of Medicine, Philippine General Hospital, University of the Philippines Manila
| | - Aylmer Rex B. Hernandez
- Division of Medical Oncology, Department of Medicine, Philippine General Hospital, University of the Philippines Manila
| | - Alfredo V. Chua
- Division of Medical Oncology, Department of Medicine, Philippine General Hospital, University of the Philippines Manila
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Andityas M, Nuraini DM, Sota P, Loong SK, Sripa B, Sukon P, Tangkawattana P, Tangkawattana S. Feline leptospirosis prevalence worldwide: A systematic review and meta-analysis of diagnostic approaches. Vet World 2024; 17:255-272. [PMID: 38595668 PMCID: PMC11000471 DOI: 10.14202/vetworld.2024.255-272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/05/2024] [Indexed: 04/11/2024] Open
Abstract
Background and Aim Leptospirosis in felids (domestic and wild cats) presents an ongoing challenge in our understanding. Numerous studies have reported the detection of Leptospira spp. in these feline populations, highlighting their potential as zoonotic carriers. This systematic review and meta-analysis aimed to provide insight into the global prevalence of leptospirosis in domestic and wild cats. Materials and Methods We conducted extensive searches across five databases (PubMed, Scopus, Web of Science, Science Direct, and Google Scholar) following the Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocols guidelines. Random-effect meta-analyses were performed using R software version 4.3.0 to estimate pooled prevalence rates. Subgroup meta-analyses were conducted based on continents, diagnostic methods, sample types, and wildcat genera. Results A total of 71 articles on leptospirosis in domestic cats and 23 articles on leptospirosis in wild cats met the eligibility criteria. Our findings indicated a significantly higher pooled seroprevalence of leptospirosis in domestic cats compared with infection prevalence (9.95% [95% confidence interval (CI), 7.60%-12.54%] vs. 4.62% [95% CI, 2.10%-7.83%], p = 0.01). In contrast, no significant difference was observed in pooled seroprevalence and infection prevalence among wild cats (13.38% [95% CI, 6.25%-21.93%] vs. 2.9% [95% CI, 0.00%-18.91%], p = 0.21). A subgroup meta-analysis of domestic cats revealed significant differences in seroprevalence across continents, sample types, and diagnostic methods. On the contrary, wild cats had no significant differences in any of the subgroups. Conclusion Leptospira spp. have evidently been exposed to both domestic and wild cats, highlighting their potential roles as reservoir hosts for leptospirosis. These findings highlight the importance of considering felids as a possible public health threat.
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Affiliation(s)
- Morsid Andityas
- Veterinary Science Program, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
- Veterinary Technology Study Program, Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, 55281, Indonesia
| | - Dian Meididewi Nuraini
- Veterinary Science Program, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
- Department of Animal Science, Faculty of Animal Science, Sebelas Maret University, Surakarta, 57126, Indonesia
| | - Pornphutthachat Sota
- Tropical Disease Research Center, WHO Collaborating Center for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Shih Keng Loong
- Tropical Infectious Diseases Research and Education Centre, Higher Institution Centre of Excellence, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - Banchob Sripa
- Tropical Disease Research Center, WHO Collaborating Center for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Khon Kaen University, Khon Kaen, 40002, Thailand
- Department of Tropical Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Peerapol Sukon
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Prasarn Tangkawattana
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Sirikachorn Tangkawattana
- Tropical Disease Research Center, WHO Collaborating Center for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Khon Kaen University, Khon Kaen, 40002, Thailand
- Department of Veterinary Pathobiology, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
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Arboleda M, Mejía-Torres M, Posada M, Restrepo N, Ríos-Tapias P, Rivera-Pedroza LA, Calle D, Sánchez-Jiménez MM, Marín K, Agudelo-Flórez P. Molecular Diagnosis as an Alternative for Public Health Surveillance of Leptospirosis in Colombia. Microorganisms 2023; 11:2759. [PMID: 38004770 PMCID: PMC10673046 DOI: 10.3390/microorganisms11112759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Leptospirosis represents a public health problem in Colombia. However, the underreporting of the disease is an unfortunate reality, with a clear trend towards a decrease in cases since 2019, when the guidelines for its confirmatory diagnosis changed with the requirement of two paired samples. The purpose of this review is to highlight the importance of leptospirosis. While the access to rapid diagnosis is available at practically all levels of care for dengue and malaria, leptospirosis-a doubly neglected disease-deserves recognition as a serious public health problem in Colombia. In this manner, it is proposed that molecular tests are a viable diagnostic alternative that can improve the targeted treatment of the patient and the timeliness of data and case reporting to SIVIGILA, and reduce the underreporting of the disease. Taking advantage of the strengthened technological infrastructure derived from the SARS-CoV-2 pandemic for molecular diagnosis in Colombia, with a network of 227 laboratories distributed throughout the national territory, with an installed capacity for PCR testing, it is proposed that molecular diagnosis can be used as an alternative for early diagnosis. This would allow case confirmation through the public health network in Colombia, and, together with the microagglutination (MAT) technique, the epidemiological surveillance of this disease in this country would be strengthened.
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Affiliation(s)
- Margarita Arboleda
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Mariana Mejía-Torres
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Maritza Posada
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Nicaela Restrepo
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Paola Ríos-Tapias
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Luis Alberto Rivera-Pedroza
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - David Calle
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Miryan M. Sánchez-Jiménez
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
| | - Katerine Marín
- Tropical Medicine Group, Colombian Institute of Tropical Medicine, Sabaneta 055450, Colombia; (M.M.-T.); (M.P.); (N.R.); (P.R.-T.); (L.A.R.-P.); (D.C.); (M.M.S.-J.); (K.M.)
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Yamamoto Y, Hagiya H, Hayashi R, Otsuka F. Case Report: Leptospirosis after a Typhoon Disaster Outside the Endemic Region, Japan. Am J Trop Med Hyg 2023; 109:587-588. [PMID: 37524329 PMCID: PMC10484281 DOI: 10.4269/ajtmh.23-0133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/27/2023] [Indexed: 08/02/2023] Open
Abstract
Leptospirosis is a zoonotic disease that primarily affects people in tropical and subtropical areas worldwide. Owing to the temperate climate of Japan, leptospirosis is not endemic across the country. Domestic cases of leptospirosis have been mainly reported in Okinawa and the southwestern subtropical islands, but not in the other regions. Here, we describe a case of leptospirosis that developed and was diagnosed outside the domestically endemic region. Notably, disease onset occurred shortly after the patient experienced a flood after a typhoon disaster. With global warming, the international prevalence of leptospirosis may change. Physicians outside currently endemic areas must be aware of this tropical disease.
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Affiliation(s)
- Yukichika Yamamoto
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hideharu Hagiya
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ruiko Hayashi
- Department of Internal Medicine, Kosei General Hospital, Hiroshima, Japan
| | - Fumio Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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11
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Sohn-Hausner N, Kmetiuk LB, da Silva EC, Langoni H, Biondo AW. One Health Approach to Leptospirosis: Dogs as Environmental Sentinels for Identification and Monitoring of Human Risk Areas in Southern Brazil. Trop Med Infect Dis 2023; 8:435. [PMID: 37755896 PMCID: PMC10534403 DOI: 10.3390/tropicalmed8090435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023] Open
Abstract
Leptospirosis has been a neglected, widespread and reemerging zoonotic disease of global importance. The One Health holistic approach combining human, animal and environmental health has been important for control and prevention of zoonotic disease. An urban municipality in Southern Brazil with a high prevalence of leptospirosis was selected by convenience, with asymptomatic human and canine individuals serologically tested using MAT against 30 Leptospira spp. serovars. Epidemiological questionnaires were assessed along with the historical national database, with associated risk factors to dog and human seropositivity analyzed using multiple logistic regression. The spatial distribution of retrospective human leptospirosis cases was analyzed using a Kernel map and overlapped dog seropositivity and historical flooding areas, demonstrating that domestic and asymptomatic dogs may be important environmental sentinels for leptospirosis in such urban areas, even in the absence of human seropositivity and low canine seropositivity. Associated risk factors for leptospirosis in dogs and humans according to multiple regression included healthy dogs (p = 0.02, odds ratio-OR = 0.17, confidence interval of 95%CI 0.03-0.71) with indoor access (p = 0.059, OR = 5.12, 95%CI 1.10-37.7) and human males (p = 0.042, OR = 2.44, 95%CI 1.08-6.11) with presenting calf pain (p = 0.005, OR = 3.14, 95%CI 1.46-7. 14), jaundice (p < 0.001, OR = 4.61, 95%CI 2.11-10.10) and renal failure (p = 0.008, OR = 4.49, 95%CI 1.49-13.76). The greater the rain precipitation (above 3 mm of average annual precipitation), the higher the number of leptospirosis cases in humans. In conclusion, dog active serosurvey and rain precipitation should be systematically reported and plotted altogether as a basis for the early detection and monitoring of human risk areas. Such findings may serve as a basis for public health policies in Brazil and other endemic countries worldwide.
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Affiliation(s)
- Natacha Sohn-Hausner
- Department of Cell and Molecular Biology, Federal University of Paraná, Curitiba 80035-050, PR, Brazil
| | - Louise Bach Kmetiuk
- Department of Cell and Molecular Biology, Federal University of Paraná, Curitiba 80035-050, PR, Brazil
| | - Evelyn Cristine da Silva
- Department of Veterinary Hygiene and Public Health, Sao Paulo State University, Botucatu 18618-681, SP, Brazil
| | - Helio Langoni
- Department of Veterinary Hygiene and Public Health, Sao Paulo State University, Botucatu 18618-681, SP, Brazil
| | - Alexander Welker Biondo
- Department of Cell and Molecular Biology, Federal University of Paraná, Curitiba 80035-050, PR, Brazil
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12
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Galan DI, Schneider MC, Roess AA. Leptospirosis Risk among Occupational Groups in Brazil, 2010-2015. Am J Trop Med Hyg 2023; 109:376-386. [PMID: 37400068 PMCID: PMC10397431 DOI: 10.4269/ajtmh.21-0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 05/20/2022] [Indexed: 07/05/2023] Open
Abstract
Leptospirosis is a zoonotic disease that is primarily transmitted through close contact with contaminated environments or infected animals. Brazil has the highest number of reported cases of leptospirosis in the Americas (approximately 4,000 annual cases). The purpose of this study is to identify the occupational groups with a higher risk of leptospirosis in Brazil from 2010 through 2015 among suspected cases reported to the national surveillance system. Confirmed and unconfirmed cases of leptospirosis with laboratory diagnosis, 20,193 and 59,034 respectively, were classified into 12 occupational groups. Confirmed cases were predominantly male (79.4%), between 25 and 59 years of age (68.3%), white (53.4%), illiterate or with incomplete primary education (51.1%), and participating in agricultural work (19.9%). After controlling for age, sex, race, and area of residency, the multivariate analysis identified that between confirmed and unconfirmed cases of leptospirosis reported to the Brazilian national surveillance system, five occupational groups are at higher risk for leptospirosis: garbage and recycling collectors (odds ratio [OR] = 4.10; 95% CI = 3.36-4.99); agricultural, forestry, and fishery workers (OR = 1.65; 95% CI = 1.49-1.84); prisoners (OR = 1.56; 95% CI = 1.04-2.35); building workers (OR = 1.36; 95% CI = 1.22-1.51); cleaners and mining workers (OR = 1.25; 95% CI = 1.07-1.45). This is the first nationwide study to examine leptospirosis risk by occupational group in Brazil using national surveillance data. Our results suggest that among suspected cases there was an increased risk among occupational groups with low income and low educational levels.
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Affiliation(s)
- Deise I. Galan
- Department of Environmental and Occupational Health, The George Washington University, Washington, District of Columbia
| | - Maria Cristina Schneider
- Department of International Health, Georgetown University, Washington, District of Columbia
- Institute of Studies in Collective Health, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amira A. Roess
- Department of Global and Community Health, George Mason University, Fairfax, Virginia
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13
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Sohn-Hausner N, Kmetiuk LB, Biondo AW. One Health Approach to Leptospirosis: Human-Dog Seroprevalence Associated to Socioeconomic and Environmental Risk Factors in Brazil over a 20-Year Period (2001-2020). Trop Med Infect Dis 2023; 8:356. [PMID: 37505652 PMCID: PMC10383893 DOI: 10.3390/tropicalmed8070356] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Despite being considered a neglected, re-emerging and the most widespread zoonotic disease worldwide, human-dog leptospirosis has not been subjected to One Health approach, and neither were its socioeconomic and environmental risk factors, as well as concomitant spatial analysis over time. Accordingly, notified human leptospirosis cases, incidence rate and urban hotspot areas, in addition to a systematic review of dog leptospirosis cases, were performed nationwide from 2001 to 2020 in Brazil. Data on Gross Domestic Product (GDP), flooding and study areas were also assessed and tabulated. Human-dog leptospirosis cases were simultaneously mapped with overlapping flooding areas, along with the main circulant serovars. Comparative outcome has shown that dogs may be exposed similarly to humans, becoming important sentinels and/or reservoirs for human leptospirosis in larger geographic areas. Moreover, the study herein can help in the decision and implementation of public policies in Brazil and may serve as a model for other tropical countries worldwide.
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Affiliation(s)
- Natacha Sohn-Hausner
- Department of Cell and Molecular Biology, Federal University of Paraná, Curitiba 80035-050, PR, Brazil
| | - Louise Bach Kmetiuk
- Department of Cell and Molecular Biology, Federal University of Paraná, Curitiba 80035-050, PR, Brazil
| | - Alexander Welker Biondo
- Department of Cell and Molecular Biology, Federal University of Paraná, Curitiba 80035-050, PR, Brazil
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14
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Udechukwu CC, Kudi CA, Abdu PA, Mamman PH, Pilau NN, Abiayi EA, Jolayemie KO, Okoronkwo MO, Adekola AA. Isolation and molecular characterization of pathogenic Leptospira species from cattle in Zaria and its environs, Kaduna State, Nigeria. Comp Immunol Microbiol Infect Dis 2023; 99:102003. [PMID: 37393647 DOI: 10.1016/j.cimid.2023.102003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/04/2023] [Accepted: 06/09/2023] [Indexed: 07/04/2023]
Abstract
Leptospirosis is a zoonotic disease caused by pathogenic serovars of Leptospira spp. The paucity of information on the status of leptospirosis in cattle in the study area led to this study. A cross-sectional study was carried out with a total of 130 kidney samples from cattle which were cultured using Ellinghausen Mc-Cullough Johnson Harris enrichment and examined on dark field microscope after 8 weeks of culture. DNA was extracted directly from 6 kidney tissues to confirm the presence of pathogenic Leptospira spp. and further sequenced to determine the species of Leptospira spp. Result of the culture indicated that the overall occurrence of Leptospira spp.was 32.30 %. Phylogenetic analysis of lipL32 sequences showed Leptospira interrogans isolates from cattle nucleotide homology ranging from 99.40 % to 99.73 % with a query cover of 100 % when compared with sequence from gene bank. In conclusion, this study established that cattle may act as a significant reservoir of leptospirosis in the study area and pose a potential risk to abattoir workers, veterinarians and local communities.
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Affiliation(s)
| | - Caleb Ayuba Kudi
- Department of Veterinary Medicine Ahmadu Bello University, Zaria, Nigeria
| | - Paul Ayub Abdu
- Department of Veterinary Medicine Ahmadu Bello University, Zaria, Nigeria
| | - Paul H Mamman
- Department of Veterinary Microbiology Ahmadu Bello University, Zaria, Nigeria
| | | | - Elmina Abiba Abiayi
- Microbiology Division, Central Diagnostic Laboratory National Veterinary Research Institute, Vom Plateau state, Nigeria
| | | | | | - Adewole Augustine Adekola
- Harper and Keele Veterinary School, Keele, Newcastle, England, UK; Royal Veterinary College, Pathobiology and Population Sciences, Hawkshead Lane, England, UK
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15
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Rosli MZ, Mohd-Taib FS, Khoo JJ, Chee HY, Wong YP, Shafie NJ, Mohamed NZ, AbuBakar S, Nor SM. A Multi-landscape Assessment of Leptospira Prevalence on a Diversity of Small Mammals. ECOHEALTH 2023; 20:208-224. [PMID: 37103759 DOI: 10.1007/s10393-023-01637-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Leptospirosis is a major zoonotic disease, especially in the tropics, and rodents were known to be carriers of this bacterium. There was established information on Leptospira prevalence among animal reservoirs in human-dominated landscapes from previous literature. However, there was very little focus given comparing the prevalence of Leptospira in a wide range of habitats. An extensive sampling of small mammals from various landscapes was carried out, covering oil palm plantations, paddy fields, recreational forests, semi-urbans, and wet markets in Peninsular Malaysia. This study aims to determine the prevalence of pathogenic Leptospira in a diversity of small mammals across different landscapes. Cage-trapping was deployed for small mammals' trappings, and the kidneys of captured individuals were extracted, for screening of pathogenic Leptospira by polymerase chain reaction (PCR) using LipL32 primer. Eight microhabitat parameters were measured at each study site. Out of 357 individuals captured, 21 (5.9%) were positive for pathogenic Leptospira of which recreational forest had the highest prevalence (8.8%) for landscape types, whereas Sundamys muelleri shows the highest prevalence (50%) among small mammals' species. Microhabitat analysis reveals that rubbish quantity (p < 0.05) significantly influenced the Leptospira prevalence among small mammals. Furthermore, nMDS analysis indicates that the presence of faeces, food waste, and exposure to humans in each landscape type also were linked with high prevalence of pathogenic Leptospira among the small mammals. This study supplements previous studies on pathogenic Leptospira prevalence across different landscape types, and the major microhabitat factors associated with Leptospira prevalence. This information is crucial for epidemiological surveillance and habitat management to curb the possibility of the disease outbreaks.
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Affiliation(s)
- Muhammad Zahin Rosli
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Farah Shafawati Mohd-Taib
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
| | - Jing Jing Khoo
- Tropical Infectious Diseases Research and Education Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hui Yee Chee
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Yien Ping Wong
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Nur Juliani Shafie
- School of Marine and Environmental Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Nor Zalipah Mohamed
- School of Marine and Environmental Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Sazaly AbuBakar
- Tropical Infectious Diseases Research and Education Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Shukor Md Nor
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
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16
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Freitas AR, Delai RR, Kmetiuk LB, Gaspar RC, da Silva EC, Martini R, Biondo LM, Giuffrida R, de Barros Filho IR, Santarém VA, Langoni H, Pimpão CT, Biondo AW. Spatial Owner-Dog Seroprevalence of Leptospira spp. Antibodies in Oceanic Islands and Costal Mainland of Southern Brazil. Trop Med Infect Dis 2023; 8:tropicalmed8040229. [PMID: 37104354 PMCID: PMC10141485 DOI: 10.3390/tropicalmed8040229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023] Open
Abstract
Leptospirosis has been described as a disease neglected worldwide. Affecting humans and animals, the disease is often related to poor environmental conditions such as lack of sanitation and presence of synanthropic rodents. Despite being considered as a One Health issue, no study has focused on comparing owner-dog seroprevalence between islands and seashore mainland. Accordingly, the present study assessed anti-Leptospira spp. antibodies by applying microscopic agglutination test (MAT) methods to Leptospira and assessing associated risk factors via univariate and multivariate logistic regression analysis of owners and their dogs in islands and seashore mainland of southern Brazil. No anti-Leptospira spp. Seropositivity was found in 330 owner serum samples, while dogs presented an overall seroprevalence of 5.9%. All seropositive dogs reacted to serogroups of Leptospira interrogans, including 66.7% of Pyrogenes, 44.4% Canicola, 22.2% Icterohaemorrhagiae, 16.7% Australis; six reacted to more than one serogroup. No association was found among seropositivity and epidemiological variables, except that neighborhood dogs were less likely to be seropositive. Although no seropositivity was observed in owners, seropositivity in dogs had the potential to indicate such species as being sentinels for environmental exposure and potential human risk of infection.
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Affiliation(s)
- Aaronson Ramathan Freitas
- Department of Veterinary Medicine, Federal University of Paraná State, Curitiba 80035-050, PR, Brazil
| | - Ruana Renostro Delai
- Department of Animal Science, School of Life Sciences, Pontifical Catholic University of Paraná, Curitiba 80230-130, PR, Brazil
| | - Louise Bach Kmetiuk
- Department of Veterinary Medicine, Federal University of Paraná State, Curitiba 80035-050, PR, Brazil
| | - Raquel Cuba Gaspar
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animals Science, São Paulo State University, Botucatu 18618-681, SP, Brazil
| | - Evelyn Cristine da Silva
- Institute of Biotechnology, São Paulo State University (UNESP), Tecomarias Avenue, Botucatu 18607-440, SP, Brazil
| | - Rafaella Martini
- Department of Physiology, Federal University of Paraná State, Curitiba 81530-000, PR, Brazil
| | | | - Rogério Giuffrida
- Laboratory of Veterinary Parasitology, Veterinary Teaching Hospital, University of Western São Paulo, São Paulo 19001-970, SP, Brazil
| | | | - Vamilton Alvares Santarém
- Laboratory of Veterinary Parasitology, Veterinary Teaching Hospital, University of Western São Paulo, São Paulo 19001-970, SP, Brazil
| | - Helio Langoni
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animals Science, São Paulo State University, Botucatu 18618-681, SP, Brazil
| | - Cláudia Turra Pimpão
- Department of Animal Science, School of Life Sciences, Pontifical Catholic University of Paraná, Curitiba 80230-130, PR, Brazil
| | - Alexander Welker Biondo
- Department of Veterinary Medicine, Federal University of Paraná State, Curitiba 80035-050, PR, Brazil
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Madrigal TPR, Panlilio MTT, Burog AILD, Danguilan RA, Chavez JR. Incidence of acute pancreatitis among patients with leptospirosis requiring extracorporeal membrane oxygenation (ECMO): a descriptive study. BMJ Open Gastroenterol 2023; 10:bmjgast-2022-001094. [PMID: 36927735 PMCID: PMC10030540 DOI: 10.1136/bmjgast-2022-001094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/05/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Acute pancreatitis (AP) is an infrequently reported manifestation of leptospirosis. It is more commonly seen in patients with acute respiratory distress syndrome. Despite novel modalities such as extracorporeal membrane oxygenation (ECMO), the mortality rate remains high and whether this is associated with the lung injury caused by the inflammation in AP remains unclear. OBJECTIVES AND METHODS A descriptive study was conducted at a tertiary hospital in the Philippines. Primary outcome was defined as the presence or absence of AP. Secondary outcomes were defined as 28-day mortality rate, length of hospital stay, ECMO days, renal replacement therapy (RRT) days, days on mechanical ventilation, presence of local complications of AP and development of nosocomial infections. RESULTS A total of 27 patients were included in the study, and 88.89% (n=24) were men. The mean age for all patients was 33.59±10.22 years. Out of the 27 patients, 19 (70.37%) were diagnosed with AP. Among these 19 patients, one (5.26%) had necrotising pancreatitis and two (10.52%) developed local complications of pancreatitis. Six patients (31.58%) died among those who developed AP, while one (12.50%) died among those who did not. The duration of hospital stay, ECMO, RRT, mechanical ventilation and development of nosocomial infections was also higher in the group who presented with AP. CONCLUSION AP is an under-reported complication of leptospirosis. Our study demonstrated a higher mortality and morbidity in patients with leptospirosis who developed AP.
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Affiliation(s)
- Tristan Paulo R Madrigal
- Division of Internal Medicine, National Kidney and Transplant Institute, Quezon City, Philippines
| | - Mara Teresa T Panlilio
- Division of Internal Medicine, National Kidney and Transplant Institute, Quezon City, Philippines
| | | | - Romina A Danguilan
- Division of Adult Nephrology, National Kidney and Transplant Institute, Quezon City, Philippines
| | - Joselito R Chavez
- Division of Internal Medicine, National Kidney and Transplant Institute, Quezon City, Philippines
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Wang CC, Lin GL, Lin YJ, Chen WL, Wu WT. Occupational health surveillance and detection of emerging occupational diseases among Taiwan farmers, through analysis of national-based farmers' and medico-administrative databases. Am J Ind Med 2023; 66:85-93. [PMID: 36398405 DOI: 10.1002/ajim.23443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The purpose of this study was to identify occupational injuries and diseases associated with agriculture in Asia, to provide a reference for prevention and hypotheses for future research. METHODS We matched data on agricultural workers (n = 963,124) enrolled in Taiwan's national Farmers Health Insurance since its inception in 1989, to general population controls of the same age, gender, and township. The study population was linked to the National Health Insurance Research Database from 2001 to 2016 for inpatient cases. Logistic regression was used to assess odds ratios for outcomes. RESULTS Farmers had 2.76 times the risk of mycotic corneal ulcer (95% CI: 1.96-3.87) and 1.65 times the risk of typhus fever infections (95% CI: 1.47-1.85) compared to the general population. The odds ratio for poisonous animal bites was 2.22 (95% CI: 2.07-2.38), for falling into a storm drain or manhole was 2.04 (95% CI: 1.30-3.20), and for toxic effects from pesticides was 2.01 (95% CI: 1.92-2.11). The toxic effects of organophosphate and carbamate insecticides were correlated with the cultivation of rice, fruit trees, and flowers. Q fever and motorcycle accidents were associated with fruit tree cultivation. CONCLUSIONS The study identifies agricultural occupational injuries and diseases that may inform occupational health policy and the development of prevention priorities to prevent occupational hazards for farmers.
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Affiliation(s)
- Chung-Ching Wang
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service GeneralHospital, National Defense Medical Center, Taipei, Taiwan
- Division of Occupational Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Gwan-Ling Lin
- Department of Nursing, Cardinal Tien Junior College of Healthcare and Management, New Taipei City, Taiwan
| | - Yu-Jen Lin
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service GeneralHospital, National Defense Medical Center, Taipei, Taiwan
- Division of Occupational Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Te Wu
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming Chiao Tung University, Taipei, Taiwan
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19
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Amin MA, Nahin S, Bonna AS, Kabir Rozars MF, Hossain Hawlader MD. Leptospirosis and COVID-19 co-infection case in Bangladesh. Heliyon 2022; 8:e11828. [DOI: 10.1016/j.heliyon.2022.e11828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 10/09/2022] [Accepted: 11/16/2022] [Indexed: 11/25/2022] Open
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20
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Tokarevich NK, Blinova OV. Leptospirosis in Vietnam. RUSSIAN JOURNAL OF INFECTION AND IMMUNITY 2022. [DOI: 10.15789/2220-7619-liv-1988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Leptospirosis poses a serious public health problem in many countries because about 1 million people suffer annually from this severe, often fatal, infection. At present, its importance has been increasing due to development of integration processes, globalization and intensification of economic activities, inevitable anthropogenic transformation of landscapes as well as rise in number of people with occupational risk of pathogen exposure. The burden of human leptospirosis is expected to rise with demographic shifts and climate change that result in heavy rainfall and flooding. Regarding leptospirosis, Southeast Asia, including Vietnam, is among the most vulnerable global regions. The objective of the review was to analyze available published data on the spread of leptospirosis in Vietnam. More than 100 research articles were analyzed allowing to state that in Vietnam synanthropic rodents (rats), agricultural (buffaloes, cattle, pigs) and domestic animals (cats, dogs) are the main sources of leptospirosis infection in humans. It is essential that rats (cats and dogs also) in Vietnam are used for food. Among all farm animals, pigs are of maximal importance as a source of infection in humans. In Vietnam, Leptospira prevalence in pigs varies widely, up to 73%. It depends significantly on the location, farm size, age and gender of animals, etc. A large variety of Leptospira serovars have been identified in pigs in Vietnam: Tarassovi, Bratislava, Australis, Javanica, Autumnalis, Grippotyphosa, and some others. Official Vietnam reporting of leptospirosis cases based on clinical data does not reflect the real-life incidence rate in humans. However, the available seroprevalence studies reveal that, on average, about 10% of the Vietnamese population are infected with Leptospira. Work in agriculture is the dominant risk factor for acquiring this infection. The highest Leptospira seroprevalence rates were detected in farmers, 63.2%. Serovar diversity is typical for pathogenic Leptospira circulating in Vietnam. In humans, the most frequent are antibodies to Hebdomadis, Wolffi and Icterohaemorrhagiae, but the frequency varied markedly across the country depending on the site, possibly with relation to the environment, as well as with economic activity of the local population. In Vietnam, geographic, climatic and social differences between northern, central and southern regions contribute to the specificity of local leptospirosis epidemiology. This emphasizes the advisability of developing special measures for leptospirosis prevention taking into account regional peculiarities.
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21
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Sluydts V, Sarathchandra SR, Piscitelli AP, Van Houtte N, Gryseels S, Mayer-Scholl A, Bier NS, Htwe NM, Jacob J. Ecology and distribution of Leptospira spp., reservoir hosts and environmental interaction in Sri Lanka, with identification of a new strain. PLoS Negl Trop Dis 2022; 16:e0010757. [PMID: 36112668 PMCID: PMC9518908 DOI: 10.1371/journal.pntd.0010757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 09/28/2022] [Accepted: 08/22/2022] [Indexed: 11/19/2022] Open
Abstract
Leptospirosis is a neglected zoonotic disease and one of the leading causes of zoonotic morbidity and mortality, particularly in resource-poor settings. Sri Lanka has one of the highest disease burdens worldwide, with occasional endemic leptospirosis outbreaks (2008, 2011). Rodents are considered the main wildlife reservoir, but due to a scarcity of studies it is unclear which particular species contributes to bacterial transmission and reservoir maintenance in this multi-host multi-parasite system. Several rodent species act as agricultural pests both in rice fields and in food storage facilities. To unravel the interactions among the small mammal communities, pathogenic Leptospira spp. and human transmission pathways, we collected animals from smallholder food storage facilities, where contact between humans and small mammals is most likely, and screened kidney tissue samples for Leptospira spp. using PCR. Samples were collected in three climatic zones along a rainfall gradient. Pathogenic Leptospira spp. were detected in small mammal communities in 37 (74%) out of 50 sampled farms and 61 (12%) out of 500 collected individuals were infected. The small mammal community was comprised of Rattus rattus (87.6%), Suncus shrews (8.8%), Bandicota spp. (2.8%) and Mus booduga (0.8%). Three pathogenic Leptospira spp. were identified, L. borgpetersenii (n = 34), L. interrogans (n = 15), and L. kirschneri (n = 1). Suncus shrews were commonly infected (32%), followed by B. indica (23%) and R. rattus (10%). L. borgpetersenii strains similar to strains previously extracted from human clinal samples in Sri Lanka were detected in R. rattus and Suncus shrews. L. interrogans was observed in R. rattus only. A single L. kirschneri infection was found in M. booduga. The presence of human pathogenic Leptospira species in an agricultural pest rodent (R. rattus) and in commensal shrews (Suncus) calls for management of these species in commensal settings. Further investigation of the interplay between pathogen and reservoir population dynamics, overlap in geographic range and the extent of spill-over to humans in and around rural settlements is required to identify optimal management approaches.
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Affiliation(s)
- Vincent Sluydts
- Julius Kühn-Institute, Federal Research Institute for Cultivated Plants, Institute for Plant Protection in Horticulture and Forests, Vertebrate Research, Münster, Germany
- University of Antwerp, Department of Biology, Evolutionary Ecology Group, University of Antwerp, Wilrijk, Belgium
| | | | - Anna Pia Piscitelli
- University of Antwerp, Department of Biology, Evolutionary Ecology Group, University of Antwerp, Wilrijk, Belgium
| | - Natalie Van Houtte
- University of Antwerp, Department of Biology, Evolutionary Ecology Group, University of Antwerp, Wilrijk, Belgium
| | - Sophie Gryseels
- University of Antwerp, Department of Biology, Evolutionary Ecology Group, University of Antwerp, Wilrijk, Belgium
| | - Anne Mayer-Scholl
- Federal Institute for Risk Assessment, Department of Biological Safety, Berlin, Germany
| | - Nadja Seyhan Bier
- Federal Institute for Risk Assessment, Department of Biological Safety, Berlin, Germany
| | - Nyo Me Htwe
- University of Antwerp, Department of Biology, Evolutionary Ecology Group, University of Antwerp, Wilrijk, Belgium
| | - Jens Jacob
- Julius Kühn-Institute, Federal Research Institute for Cultivated Plants, Institute for Plant Protection in Horticulture and Forests, Vertebrate Research, Münster, Germany
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Ibrahim NA, Alrashdi BM, Elnaker YF, Elmahallawy EK, Alblihed MA, Daib MS, Abd Elmoety AM, Abo Elfadl EA, Badawy BM, Elbaz E. Serological Investigation and Epidemiological Analysis of Bovine Leptospirosis in Egypt. Trop Med Infect Dis 2022; 7:tropicalmed7090208. [PMID: 36136619 PMCID: PMC9503585 DOI: 10.3390/tropicalmed7090208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Bovine leptospirosis is a bacterial zoonotic disease of worldwide distribution. Little information is available regarding the occurrence of the disease in the Nile Delta provinces, Egypt. The present study investigated the seroprevalence of leptospirosis among cattle from Dakahlia province, Northern Egypt, and identified the individual variables factors associated with infection. To this end, a total of 600 serum samples from cattle of small stakeholders with various clinical manifestations possibly associated with leptospirosis were collected from different localities across Dakahlia province, Egypt. Sera were examined serologically via ELISA to investigate the occurrence of the disease among animals. Chi-square test and multivariable logistic regression analyses were applied to determine the association between hypothesized risk factors and the disease. Interestingly, our findings showed that 39.33% of the examined sera were positive for Leptospira antibodies, with significant differences among different localities. In addition, statistical analysis showed significant differences among age groups. Notably, the highest prevalence rate (22%) was observed in those aged between 3 and 5 years (p < 0.0001), whereas the lowest prevalence (2.66%) was reported in cattle <1 year old (p < 0.0001). Moreover, females had a significantly higher prevalence rate (35.33%) than males (4%) (p < 0.0001). Furthermore, our results showed significant differences in the occurrence of infection and reported clinical signs (p < 0.0001). Multivariable logistic regression identified repeated breeder and drop milk yield as the best predictors for prediction of ELISA results and linear discriminant analysis (LDA) model showed that overall classification accuracy of ELISA result using clinical signs and demographic data as predictors was 70.7%. The current study concluded a relative high prevalence of leptospirosis among cows bred in movable herds and households in the studied area and that age, repeated breeder and drop milk yield can be considered major risk factors associated with infection.
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Affiliation(s)
- Nermin Awade Ibrahim
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Barakat M. Alrashdi
- Biology Department, College of Science, Jouf University, Sakaka 72388, Saudi Arabia
| | - Yasser Fathi Elnaker
- Animal Medicine Department (Infectious Diseases), Faculty of Veterinary Medicine, New Valley University, El Kharga 72511, Egypt
| | - Ehab Kotb Elmahallawy
- Department of Zoonoses, Faculty of Veterinary Medicine, Sohag University, Sohag 82524, Egypt
- Correspondence:
| | - Mohamed A. Alblihed
- Department of Microbiology, College of Medicine, Taif University, P.O. Box. 11099, Taif 21944, Saudi Arabia
| | - Mohamed said Daib
- Animal Hygiene and Zoonosis Department, Faculty of Veterinary Medicine, New Valley University, El Kharga 72511, Egypt
| | - Amany M. Abd Elmoety
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Eman A. Abo Elfadl
- Department of Animal Husbandry and Development of Animal Wealth, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Basma M. Badawy
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Elzahara Elbaz
- Internal Medicine and Infectious Diseases and Fish Diseases Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
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Koizumi N, Morita M, Nuradji H, Noor SM, Dharmayanti NLPI, Randusari P, Mu JJ, Solante RM, Saito N, Ariyoshi K, Ha HTT, Wada T, Akeda Y, Miura K. Comparative genomic analysis of Leptospira spp. isolated from Rattus norvegicus in Indonesia. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 102:105306. [PMID: 35618255 DOI: 10.1016/j.meegid.2022.105306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/11/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Leptospirosis is one of the most prevalent zoonotic diseases caused by pathogenic spirochetes of Leptospira spp. The disease has become a public health concern in urban localities in the tropics, where rats serve as significant reservoir animals for leptospirosis transmission. In Indonesia, the occurrence of leptospirosis is underestimated, and information on the causative Leptospira genotypes and serotypes is limited. This study reports the isolation of Leptospira spp. from rats captured in urban areas of Bogor, Indonesia. Serogroups and genotypes, sequence types (STs), or multiple-locus variable-number tandem repeat analysis (MLVA) types using 11 loci, were determined for the isolates. Furthermore, whole genome sequencing (WGS) was performed on 11 Indonesian isolates and 24 isolates from other Asian countries. Ninety small mammals, including 80 Rattus norvegicus and ten Suncus murinus, were captured and, 25 Leptospira spp. were isolated solely from R. norvegicus (31.3%). The isolates were identified as Leptospira borgpetersenii serogroup Javanica with ST 143 (four strains) and Leptospira interrogans serogroup Bataviae with the same MLVA type as isolates from other Asian countries (19); the serogroup of the two L. interrogans with ST252 could not be identified. The core genome SNP-based phylogenetic tree revealed that Indonesian isolates were genetically related to L. borgpetersenii serogroup Javanica strains widely distributed in Asian countries but formed a different cluster from other strains. The phylogenetic tree of L. interrogans serogroup Bataviae isolates from Indonesia, the Philippines, Taiwan, and Vietnam revealed that isolates were grouped into five clusters based on their geographic locations. This study discovered a high carriage rate of Leptospira spp. among R. norvegicus in Bogor, Indonesia, indicating a potential risk of rat-borne leptospirosis in the area. Besides L. borgpetersenii serogroup Javanica, WGS on L. interrogans serogroup Bataviae illustrated the geographical structuring of genetic diversity in Leptospira spp.
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Affiliation(s)
- Nobuo Koizumi
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
| | - Masatomo Morita
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Harimurti Nuradji
- Indonesian Research Center for Veterinary Science (BB Litvet), Jl. RE Martadinata No. 30, Bogor, West Java 16114, Indonesia
| | - Susan M Noor
- Indonesian Research Center for Veterinary Science (BB Litvet), Jl. RE Martadinata No. 30, Bogor, West Java 16114, Indonesia
| | - N L P Indi Dharmayanti
- Indonesian Research Center for Veterinary Science (BB Litvet), Jl. RE Martadinata No. 30, Bogor, West Java 16114, Indonesia
| | | | - Jung-Jung Mu
- Bacterial Enteric and Emerging Diseases Laboratory, Center for Research, Diagnostics and Vaccine Development, Centers for Disease Control, Taiwan, No. 161 Kun-Yang Street, Taipei 11561, Taiwan
| | - Rontgene M Solante
- San Lazaro Hospital, Quiricada St Santa Cruz, Manila, Metro Manila 1003, Philippines
| | - Nobuo Saito
- Department of Microbiology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasamamachi, Yufu, Oita 879-5593, Japan; School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Koya Ariyoshi
- School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan; Department of Clinical Tropical Medicine, Institute of Tropical Medicine, Nagasaki University Graduate School of Biomedical Science, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Hoang Thi Thu Ha
- Department of Bacteriology, National Institute of Hygiene and Epidemiology, Hanoi 10000, Viet Nam
| | - Takayuki Wada
- Graduate School of Human Life Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan
| | - Yukihiro Akeda
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kozue Miura
- Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Dung LP, Hai PT, Hoa LM, Mai TNP, Hanh NTM, Than PD, Tran VD, Quyet NT, Hai H, Ngoc DB, Thu NT, Mai LTP. A case-control study of agricultural and behavioral factors associated with leptospirosis in Vietnam. BMC Infect Dis 2022; 22:583. [PMID: 35768761 PMCID: PMC9245206 DOI: 10.1186/s12879-022-07561-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 06/17/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Leptospirosis is a neglected disease in Vietnam. Until now, there has been limited knowledge about risk factors of this disease in Vietnam. The study was carried out to identify agricultural and behavioral factors associated with the transmission of leptospirosis in Vietnam. Methods This matched retrospective hospital-community-based case–control study was conducted from 1 October 2018 to 31 October 2019. We recruited cases from 11 selected government hospitals in three provinces of Vietnam, while controls were selected from the same communes of cases and matched by age (± 2 years) and sex. Microscopic agglutination test (MAT) and enzyme-linked immunosorbent assay (ELISA) were applied to determine confirmed cases, while only MAT was used to identify controls with a single high MAT titer < 1:100. Results 504 participants (252 cases and 252 controls) were identified. Cultivating (OR 2.83, CI 1.38–5.79), animal farming (OR 8.26, CI 2.24–30.52), pig owners (OR 10.48, CI 5.05–21.73), cat owners (OR 2.62, CI 1.49–4.61) and drinking unboiled water (OR 1.72, CI 1.14 –2.59, p = 0.010) were significantly associated with human leptospirosis in Vietnam. Hand washing after farming/ gardening (OR 0.57, CI 0.38–0.86, p = 0.007) and bathing after farming, gardening, contact with cattle and poultry (OR 0.33, CI 0.19–0.58, p = 0.000) were determined as protective factors for this disease. Conclusions In short, the case–control study has revealed the risks in agricultural and animal practices and protective behavioral factors related to human leptospirosis in Vietnam. The findings suggested promotion of communication and health education programs targeting health behaviors in daily life and agricultural practices. Using personal protective equipment such as gowns, gloves, and boots during agricultural practices, especially cultivating and animal farming, is most recommended. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07561-6.
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Affiliation(s)
- Luu Phuong Dung
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Pham Thanh Hai
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Luong Minh Hoa
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Tran Ngoc Phuong Mai
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Nguyen Thi My Hanh
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Phan Dang Than
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Van Dinh Tran
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Nguyen Tu Quyet
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Hoang Hai
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Do Bich Ngoc
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam
| | - Nguyen Thị Thu
- Hanoi Population and Family Planning Branch, Hanoi, Vietnam
| | - Le Thi Phuong Mai
- Department of Public Health, National Institute of Hygiene and Epidemiology, 1 Yersin Street, Hai Ba Trung District, Hanoi, Vietnam.
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Purwoko P, Permana SA, Wicaksono N. A Rare Case Report of Leptospirosis Infection with Jaundice and Acute Kidney Injury Symptoms into the Intensive Care Unit. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
ABSTRACT
INTRODUCTION: Leptospirosis, often known as Weill' disease, is a zoonotic disease caused by spiral-shaped bacteria of the Leptospira genus. This disease is spread by direct or indirect contact with infected animals' urine, such as rats.
CASE REPORT: The case was a 49-year-old man, came to Emergency Room DR. Moewardi Hospital Surakarta with symptoms of yellowing of the skin and eyes since 10 days before come to hospital. Patients who complain of fever, vomiting, urine had changed to a brownish yellow like tea and pain all over the body. The patient brought laboratory results of leukocytosis, increase in transaminases, increase in urea and creatinine with clinical symptoms Acute Kidney Injury (AKI) with BUN 122.3 mg/dL and serological examination of leptospira antibodies showed positive results.
CONCLUSION: This patient was treated in the Intensive Care Unit room with treatment in the form of cito hemodialysis and administration of the antibiotic ceftriaxone 2gram/12 hours. The patient went home after 5 days of treatment.
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Phosri A. Effects of rainfall on human leptospirosis in Thailand: evidence of multi-province study using distributed lag non-linear model. STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT : RESEARCH JOURNAL 2022; 36:4119-4132. [PMID: 35692716 PMCID: PMC9167037 DOI: 10.1007/s00477-022-02250-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
UNLABELLED Leptospirosis is a zoonotic bacterial disease that remains an important public health problem, especially in tropical developing countries. Many previous studies in Thailand have revealed the outbreak of human leptospirosis after heavy rainfall, but research determining its quantitative risks associated with rainfall, especially at the national level, remains limited. This study aims to examine the association between rainfall and human leptospirosis across 60 provinces of Thailand. A quasi-Poisson regression framework combined with the distributed lag non-linear model was used to estimate province-specific association between rainfall and human leptospirosis, adjusting for potential confounders. Province-specific estimates were then pooled to derive regional and national estimates using random-effect meta-analysis. The highest risk of leptospirosis associated with rainfall at national level was observed at the same month (lag 0). Using 0 cm/month of rainfall as a reference, the relative risks of leptospirosis associated with heavy (90th percentile), very heavy (95th percentile), and extremely heavy (99th percentile) rainfall at the national level were 1.0994 (95% CI 0.9747, 1.2401), 1.1428 (95% CI 1.0154, 1.2862), and 1.1848 (95% CI 1.0494, 1.3378), respectively. The highest risk of human leptospirosis associated with rainfall was observed in the northern and north-eastern regions. Specifically, the relative risks of leptospirosis associated with extremely heavy rainfall in northern and north-eastern regions were 1.2362 (95% CI 0.9110, 1.6775) and 1.2046 (95% CI 0.9728, 1.4918), respectively. Increasing rainfall was associated with increased risks of leptospirosis, especially in the northern and northeastern regions of Thailand. This finding could be used for precautionary warnings against heavy rainfall. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s00477-022-02250-x.
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Affiliation(s)
- Arthit Phosri
- Department of Environmental Health Sciences, Faculty of Public Health, Mahidol University, Bangkok, 10400 Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, Ministry of Higher Education, Science, Research and Innovation, Bangkok, Thailand
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Comparison of the Serion IgM ELISA and Microscopic Agglutination Test for diagnosis of Leptospira spp. infections in sera from different geographical origins and estimation of Leptospira seroprevalence in the Wiwa indigenous population from Colombia. PLoS Negl Trop Dis 2022; 16:e0009876. [PMID: 35666764 PMCID: PMC9223614 DOI: 10.1371/journal.pntd.0009876] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 06/23/2022] [Accepted: 04/22/2022] [Indexed: 11/23/2022] Open
Abstract
Leptospirosis is among the most important zoonotic diseases in (sub-)tropical countries. The research objective was to evaluate the accuracy of the Serion IgM ELISA EST125M against the Microscopic Agglutination Test (MAT = imperfect reference test); to assess its ability to diagnose acute leptospirosis infections and to detect previous exposure to leptospires in an endemic setting. In addition, to estimate the overall Leptospira spp. seroprevalence in the Wiwa indigenous population in North-East Colombia. We analysed serum samples from confirmed leptospirosis patients from the Netherlands (N = 14), blood donor sera from Switzerland (N = 20), and sera from a cross-sectional study in Colombia (N = 321). All leptospirosis ELISA-positive, and a random of negative samples from Colombia were tested by the MAT for confirmation. The ELISA performed with a sensitivity of 100% (95% CI 77% - 100%) and a specificity of 100% (95% CI 83% - 100%) based on MAT confirmed Leptospira spp. positive and negative samples. In the cross-sectional study in Colombia, the ELISA performed with a sensitivity of 100% (95% CI 2–100%) and a specificity of 21% (95% CI 15–28%). Assuming a 5% Leptospira spp. seroprevalence in this population, the positive predictive value was 6% and the negative predictive value 100%. The Leptospira spp. seroprevalence in the Wiwas tested by the ELISA was 39%; however, by MAT only 0.3%. The ELISA is suitable to diagnose leptospirosis in acutely ill patients in Europe several days after onset of disease. For cross-sectional studies it is not recommended due to its low specificity. Despite the evidence of a high leptospirosis prevalence in other study areas and populations in Colombia, the Wiwa do not seem to be highly exposed to Leptospira spp.. Nevertheless, leptospirosis should be considered and tested in patients presenting with febrile illness. Leptospirosis is among the most important zoonotic diseases in (sub-)tropical countries. The correct diagnosis of leptospirosis is very important to take a medical or public health decision. Therefore, we tested a serological test (ELISA) for its ability to correctly diagnose a negative sample as truly negative and a positive sample as truly positive. We tested the ELISA with European acute leptospirosis confirmed positive and negative samples and compared results with another serological test (microscopic agglutination test), which is the recognized reference test. Further, the ELISA was assessed for its ability to detect previous exposure to leptospires in serum samples from the indigenous Wiwa population from Colombia, where leptospirosis is expected to be endemic. The ELISA performed very well with sera from patients with acute leptospirosis, however had difficulties to diagnose negative samples as truly negative in the Colombian field samples; hence unexposed persons were falsely diagnosed to be positive. Therefore, we recommend using the ELISA to detect acute leptospirosis several days after onset of illness in a non-endemic environment, but are not convinced of its usefulness to screen a population for previous Leptospira spp. exposure.
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Douchet L, Goarant C, Mangeas M, Menkes C, Hinjoy S, Herbreteau V. Unraveling the invisible leptospirosis in mainland Southeast Asia and its fate under climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 832:155018. [PMID: 35390383 DOI: 10.1016/j.scitotenv.2022.155018] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/16/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
Leptospirosis is a neglected waterborne zoonosis of growing concern in tropical and low-income regions. Endemic in Southeast Asia, its distribution and environmental factors such as climate controlling its dynamics remain poorly documented. In this paper, we investigate for the first time the current and future leptospirosis burden at a local scale in mainland Southeast Asia. We adjusted machine-learning models on incidence reports from the Thai surveillance system to identify environmental determinants of leptospirosis. The explanatory variables tested in our models included climate, topographic, land cover and soil variables. The model performing the best in cross-validation was used to estimate the current incidence regionally in Thailand, Myanmar, Cambodia, Vietnam and Laos. It then allowed to predict the spatial distribution of leptospirosis future burden from 2021 to 2100 based on an ensemble of CMIP6 climate model projections and 4 Shared Socio-economics Pathways ranging from the most optimistic to the no-climate policy outcomes (SSP1-2.6, SSP2-4.5, SSP3-7.0 and SSP5-8.5). Leptospirosis incidence was best estimated by 10 environmental variables: four landscape-, four rainfall-, two temperature-related variables. Of all tested scenario, the worst-case scenario of climate change (SSP5-8.5) surprisingly appeared as the best-case scenario for the future of leptospirosis since it would induce a significant global decline in disease incidence in Southeast Asia mainly driven by the increasing temperatures. These global patterns are however contrasted regionally with some regions showing increased incidence in the future. Our work highlights climate and the environment as major drivers of leptospirosis incidence in Southeast Asia. Applying our model to regions where leptospirosis is not routinely monitored suggests an overlooked burden in the region. As our model focuses on leptospirosis responses to environmental drivers only, some other factors, such as poverty, lifestyle or behavioral changes, could further influence these estimated future patterns.
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Affiliation(s)
- Léa Douchet
- ENTROPIE, IRD, Univ Reunion, CNRS, IFREMER, Univ Nouvelle Calédonie, 101 Promenade Roger Laroque, Nouméa 98800, New Caledonia; ESPACE-DEV, IRD, Univ Montpellier, Univ. Antilles, Univ Guyane, Univ Réunion, 5 Preah Monivong Blvd, Phnom Penh 12201, Cambodia.
| | - Cyrille Goarant
- Institut Pasteur in New Caledonia, Institut Pasteur International Network, Leptospirosis Research and Expertise Unit, 9 Ave Paul Doumer, Nouméa 98800, New Caledonia
| | - Morgan Mangeas
- ENTROPIE, IRD, Univ Reunion, CNRS, IFREMER, Univ Nouvelle Calédonie, 101 Promenade Roger Laroque, Nouméa 98800, New Caledonia
| | - Christophe Menkes
- ENTROPIE, IRD, Univ Reunion, CNRS, IFREMER, Univ Nouvelle Calédonie, 101 Promenade Roger Laroque, Nouméa 98800, New Caledonia
| | - Soawapak Hinjoy
- Office of International Cooperation, Department of Disease Control, Ministry of Public Health, 88/21 Tiwanon Road, Thaladkwan, Muang, Nonthaburi 11000, Thailand
| | - Vincent Herbreteau
- ESPACE-DEV, IRD, Univ Montpellier, Univ. Antilles, Univ Guyane, Univ Réunion, 5 Preah Monivong Blvd, Phnom Penh 12201, Cambodia
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Characteristics of human leptospirosis in three different geographical and climatic zones of Vietnam: A hospital-based study. Int J Infect Dis 2022; 120:113-120. [DOI: 10.1016/j.ijid.2022.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/05/2022] [Accepted: 04/05/2022] [Indexed: 01/18/2023] Open
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Abstract
Leptospirosis is a zoonotic disease caused by infection with pathogenic leptospires. Consistent with recent studies by other groups, leptospires were isolated from 89 out of 110 (80.9%) soil or water samples from varied locations in the Philippines in our surveillance study, indicating that leptospires might have a life cycle that does not involve animal hosts. However, despite previous work, it has not been confirmed whether leptospires multiply in the soil environment under various experimental conditions. Given the fact that the case number of leptospirosis is increased after flood, we hypothesized that waterlogged soil, which mimics the postflooding environment, could be a suitable condition for growing leptospires. To verify this hypothesis, pathogenic and saprophytic leptospires were seeded in the bottles containing 2.5 times as much water as soil, and bacterial counts in the bottles were measured over time. Pathogenic and saprophytic leptospires were found to increase their number in waterlogged soil but not in water or soil alone. In addition, leptospires were reisolated from soil in closed tubes for as long as 379 days. These results indicate that leptospires are in a resting state in the soil and are able to proliferate with increased water content in the environment. This notion is strongly supported by observations that the case number of leptospirosis is significantly higher in rainy seasons and increased after flood. Therefore, we reached the following conclusion: environmental soil is a potential reservoir of leptospires. IMPORTANCE Since research on Leptospira has focused on pathogenic leptospires, which are supposed to multiply only in animal hosts, the life cycle of saprophytic leptospires has long been a mystery. This study demonstrates that both pathogenic and saprophytic leptospires multiply in the waterlogged soil, which mimics the postflooding environment. The present results potentially explain why leptospirosis frequently occurs after floods. Therefore, environmental soil is a potential reservoir of leptospires and leptospirosis is considered an environment-borne as well as a zoonotic disease. This is a significant report to reveal that leptospires multiply under environmental conditions, and this finding leads us to reconsider the ecology of leptospires.
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Mishra C, Samelius G, Khanyari M, Srinivas PN, Low M, Esson C, Venkatachalam S, Johansson Ö. Increasing risks for emerging infectious diseases within a rapidly changing High Asia. AMBIO 2022; 51:494-507. [PMID: 34292521 PMCID: PMC8297435 DOI: 10.1007/s13280-021-01599-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/24/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
The cold and arid mountains and plateaus of High Asia, inhabited by a relatively sparse human population, a high density of livestock, and wildlife such as the iconic snow leopard Panthera uncia, are usually considered low risk for disease outbreaks. However, based on current knowledge about drivers of disease emergence, we show that High Asia is rapidly developing conditions that favor increased emergence of infectious diseases and zoonoses. This is because of the existing prevalence of potentially serious pathogens in the system; intensifying environmental degradation; rapid changes in local ecological, socio-ecological, and socio-economic factors; and global risk intensifiers such as climate change and globalization. To better understand and manage the risks posed by diseases to humans, livestock, and wildlife, there is an urgent need for establishing a disease surveillance system and improving human and animal health care. Public health must be integrated with conservation programs, more ecologically sustainable development efforts and long-term disease surveillance.
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Affiliation(s)
- Charudutt Mishra
- Snow Leopard Trust, 4649 Sunnyside Avenue North, Seattle, USA
- Nature Conservation Foundation, 3076/5, IV Cross Gokulam Park, Mysore, India
| | - Gustaf Samelius
- Snow Leopard Trust, 4649 Sunnyside Avenue North, Seattle, USA
- Nordens Ark, Åby Säteri, 456 93 Hunnebostrand, Sweden
| | - Munib Khanyari
- Snow Leopard Trust, 4649 Sunnyside Avenue North, Seattle, USA
- Nature Conservation Foundation, 3076/5, IV Cross Gokulam Park, Mysore, India
- Interdisciplinary Center for Conservation Sciences, Oxford, University UK
- Department of Biological Sciences, University of Bristol, Bristol, UK
| | | | - Matthew Low
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Carol Esson
- 41 Walnut Close, Speewah, Queensland, 4881 Australia
| | - Suri Venkatachalam
- Snow Leopard Trust, 4649 Sunnyside Avenue North, Seattle, USA
- Nature Conservation Foundation, 3076/5, IV Cross Gokulam Park, Mysore, India
| | - Örjan Johansson
- Snow Leopard Trust, 4649 Sunnyside Avenue North, Seattle, USA
- Department of Ecology, Grimsö Wildlife Research Station, Swedish University of Agricultural Sciences, 73091 Riddarhyttan, Sweden
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Suwannarong K, Soonthornworasiri N, Maneekan P, Yimsamran S, Balthip K, Maneewatchararangsri S, Saisongkorh W, Saengkul C, Sangmukdanun S, Phunta N, Singhasivanon P. Rodent–Human Interface: Behavioral Risk Factors and Leptospirosis in a Province in the Central Region of Thailand. Vet Sci 2022; 9:vetsci9020085. [PMID: 35202338 PMCID: PMC8878075 DOI: 10.3390/vetsci9020085] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/03/2022] [Accepted: 02/11/2022] [Indexed: 12/10/2022] Open
Abstract
This sequential explanatory mixed-method study consisted of analytical, cross-sectional, and qualitative studies. The research was conducted in the Khao Nor and Khao Kaew areas of the Banphot Pisai districts of Nakhon Sawan Province in 2019. Here, we examined the rodent contact characteristics of villagers in these areas and determined the potential characteristics/risk factors associated with rodents using a semi-structured questionnaire, key informant interview (KII), and focus group discussion (FGD). Results of the quantitative study (N1 = 372) characterized participants that contacted rodents per gender, age, occupation, knowledge, attitude, and practice (KAP), including their cultural contexts, and beliefs. Ninety participants (24.2%) reported contact with rodents, and the reasons for their direct physical rodent contact were hunting (35, 9.4%), killing (41, 11.0%), preparing rodents as food (33, 8.9%), consuming cooked meats (12, 3.2%), feeding food (4, 1.1%), cleaning feces (17, 4.6%), and cleaning carcasses (33, 8.9%). Moreover, logistic regression results showed that males encountering rodents were statistically significant (Adjusted OR = 3.137, 95% CI 1.914–5.139, p < 0.001). Low monthly household income (<THB 15,000 or <USD 450) was also negatively statistically significant with encountering rodents (Adjusted OR = 0.57, 95% CI 0.33–0.99, p = 0.04). Additionally, the villagers had a low level of knowledge toward zoonotic diseases and inappropriate attitudes and practices toward contacting rodents and zoonotic diseases. Thirty-five qualitative study participants (N2) participated in the KIIs and FGDs. Various rodent contact activities were also reported among the qualitative research participants, such as hunting, consumption, and selling them to their friends and neighbors. However, these rodents also destroyed their belongings, crops, and plants. Some participants also reported that rodents accounted for leptospirosis transmission. As a result, communication intervention should be planned to provide appropriate knowledge and attitude to the villagers, especially among those who have close contact with rodents in the understudied area.
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Affiliation(s)
- Kanokwan Suwannarong
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; (K.S.); (P.M.); (S.Y.); (S.S.); (P.S.)
- SUPA71 Co., Ltd., Bangkok 10230, Thailand
| | - Ngamphol Soonthornworasiri
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; (K.S.); (P.M.); (S.Y.); (S.S.); (P.S.)
- Correspondence: ; Tel./Fax: +66-2-6444436
| | - Pannamas Maneekan
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; (K.S.); (P.M.); (S.Y.); (S.S.); (P.S.)
| | - Surapon Yimsamran
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; (K.S.); (P.M.); (S.Y.); (S.S.); (P.S.)
| | | | - Santi Maneewatchararangsri
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand;
| | - Watcharee Saisongkorh
- Department of Medical Sciences, Ministry of Public Health, Muang District, Nonthaburi 11000, Thailand;
| | - Chutarat Saengkul
- Faculty of Public Health, Nakhon Sawan Campus, Mahidol University, Nakhon Sawan 60130, Thailand;
| | - Suntaree Sangmukdanun
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; (K.S.); (P.M.); (S.Y.); (S.S.); (P.S.)
| | - Nittaya Phunta
- Ban Dan Health Promotion Hospital (under Ministry of Public Health Thailand), Ban Phot Pisai District, Nakhon Sawan 60180, Thailand;
| | - Pratap Singhasivanon
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; (K.S.); (P.M.); (S.Y.); (S.S.); (P.S.)
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Rapid diagnostic test (Leptocheck-WB) for detection of acute leptospirosis: a meta-analysis of diagnostic accuracy. Eur J Clin Microbiol Infect Dis 2022; 41:631-640. [PMID: 35147814 DOI: 10.1007/s10096-022-04420-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/04/2022] [Indexed: 12/26/2022]
Abstract
The majority of leptospirosis is subclinical or mild self-limiting systemic illness. A rapid and accurate diagnostic test for the detection of leptospirosis is essential to prevent disease progression from acute non-severe illness to potentially fatal infection. Rapid diagnostic tests (RDTs) recognized as point-of-care (PoC) tests may support clinical decision-making in resource-poor settings. We aimed to assess the accuracy of PoC (Leptocheck-WB) for the detection of acute leptospirosis by meta-analysis of data from eligible studies. This study adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis for Diagnostic Test Accuracy (PRISMA-DTA) guideline. The pooling of data was done only when there were two or more studies that used a particular type of reference test. A total of ten studies (n = 5369) were identified. The majority (70%) were from the Asian region. Using microscopic agglutination test (MAT) as reference test, the pooled sensitivity (0.75, 95% CI: 0.64 to 0.84, 10 studies, I2: 85.9%) and specificity (0.87, 95% CI: 0.77 to 0.94, 10 studies, I2: 97.37%) of Leptocheck-WB in the detection of leptospirosis were moderate. With the use of enzyme-linked immunosorbent assay (ELISA) reference test, the pooled sensitivity 0.85 (95% CI: 0.79 to 0.9, 4 studies, I2: 27.49%) and specificity 0.79 (95% CI: 0.71 to 0.85, 4 studies, I2: 58.9%) of Leptocheck-WB were also moderate. Diagnostic odds ratio of Leptocheck-WB with MAT (21, 95% CI: 10-44) or with ELISA as reference test (21, 95% CI: 9-46) showed an acceptable level of accuracy. Meta-regression analysis showed methodological quality of studies (p: 0.06) and study design (p: 0.09) were potential factors that affected the accuracy of Leptocheck-WB test. Findings suggest that Leptocheck-WB has a moderate level of acceptance for detection of acute leptospirosis. Further confirmation with large-sampled, prospectively designed studies using the same samples for evaluating test accuracy is recommended.
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Islam MM, Farag E, Hassan MM, Enan KA, Mohammad Sabeel KV, Alhaddad MM, Smatti MK, Al-Marri AM, Al-Zeyara AA, Al-Romaihi H, Yassine HM, Sultan AA, Bansal D, Mkhize-Kwitshana Z. Diversity of bacterial pathogens and their antimicrobial resistance profile among commensal rodents in Qatar. Vet Res Commun 2022; 46:487-498. [PMID: 35083655 DOI: 10.1007/s11259-021-09876-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/12/2021] [Indexed: 11/28/2022]
Abstract
Rodents are sources of many zoonotic pathogens that are of public health concern. This study investigated bacterial pathogens and assessed their antimicrobial resistance (AMR) patterns in commensal rodents in Qatar. A total of 148 rodents were captured between August 2019 and February 2020, and blood, ectoparasites, and visceral samples were collected. Gram-negative bacteria were isolated from the intestines, and blood plasma samples were used to detect antibodies against Brucella spp., Chlamydophila abortus, and Coxiella burnetii. PCR assays were performed to detect C. burnetii, Leptospira spp., Rickettsia spp., and Yersinia pestis in rodent tissues and ectoparasite samples. Antimicrobial resistance by the isolated intestinal bacteria was performed using an automated VITEK analyzer. A total of 13 bacterial species were isolated from the intestine samples, namely Acinetobacter baumannii, Aeromonas salmonicida, Citrobacter freundii, Citrobacter koseri, Enterobacter aerogenes, Enterobacter cloacae, Escherichia coli, Hafnia alvei, Klebsiella pneumoniae, Providencia stuartii, Proteus mirabilis, Pseudomonas aeruginosa, and Salmonella enterica. The majority of them were E. coli (54.63%), followed by P. mirabilis (17.59%) and K. pneumoniae (8.33%). Most of the pathogens were isolated from rodents obtained from livestock farms (50.46%), followed by agricultural farms (26.61%) and other sources (22.94%). No antibodies (0/148) were detected against Brucella spp., C. abortus, or C. burnetii. In addition, 31.58% (6/19) of the flea pools and one (1/1) mite pool was positive for Rickettsia spp., and no sample was positive for C. burnetii, Leptospira spp., and Y. pestis by PCR. A total of 43 (38%) bacterial isolates were identified as multidrug resistant (MDR), whereas A. salmonicida (n = 1) did not show resistance to any tested antimicrobials. Over 50% of bacterial MDR isolates were resistant to ampicillin, cefalotin, doxycycline, nitrofurantoin, and tetracycline. The presence of MDR pathogens was not correlated with rodent species or the location of rodent trapping. Seven (11.86%) E. coli and 2 (22.2%) K. pneumoniae were extended-spectrum beta-lactamases (ESBL) producers. These findings suggest that rodents can be a source of opportunistic bacteria for human and animal transmission in Qatar. Further studies are needed for the molecular characterization of the identified bacteria in this study.
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Affiliation(s)
- Md Mazharul Islam
- Department of Animal Resources, Ministry of Municipality and Environment, Doha, Qatar. .,School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu Natal, Durban, 4000, South Africa.
| | | | - Mohammad Mahmudul Hassan
- Faculty of Veterinary Medicine, Chottogram Veterinary and Animal Sciences University, Khulshi, Chattogram, 4225, Bangladesh
| | - Khalid A Enan
- Department of Animal Resources, Ministry of Municipality and Environment, Doha, Qatar.,Department of Virology, Central Laboratory, The Ministry of Higher Education and Scientific Research, 7099, Khartum, Sudan
| | - K V Mohammad Sabeel
- Department of Animal Resources, Ministry of Municipality and Environment, Doha, Qatar
| | | | - Maria K Smatti
- Biomedical Research Center, Qatar University, Doha, Qatar
| | | | - Abdul Azia Al-Zeyara
- Department of Animal Resources, Ministry of Municipality and Environment, Doha, Qatar
| | | | - Hadi M Yassine
- Biomedical Research Center, Qatar University, Doha, Qatar
| | - Ali A Sultan
- Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, Doha, Qatar
| | | | - Zilungile Mkhize-Kwitshana
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu Natal, Durban, 4000, South Africa.,Division of Research Capacity Development, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa
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Karyakarte R, Baveja B, Palewar M, Joshi S. Seroprevalence of acute leptospirosis in a tertiary care hospital of western India. MGM JOURNAL OF MEDICAL SCIENCES 2022. [DOI: 10.4103/mgmj.mgmj_33_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Yadav A, Sethia M, Jain R, Singh S, Tilak R. A study of clinical profile of 100 icteric leptospirosis cases. MEDICAL JOURNAL OF DR. D.Y. PATIL VIDYAPEETH 2022. [DOI: 10.4103/mjdrdypu.mjdrdypu_843_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Grillová L, Robinson MT, Chanthongthip A, Vincent AT, Nieves C, Oppelt J, Mariet JF, Lorioux C, Vongsouvath M, Mayxay M, Phonemeexay O, Rattanavong S, Phommasone K, Douangnouvong A, Šmajs D, Veyrier FJ, Newton PN, Picardeau M. Genetic diversity of Leptospira isolates in Lao PDR and genome analysis of an outbreak strain. PLoS Negl Trop Dis 2021; 15:e0010076. [PMID: 34962921 PMCID: PMC8746763 DOI: 10.1371/journal.pntd.0010076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 01/10/2022] [Accepted: 12/09/2021] [Indexed: 11/18/2022] Open
Abstract
Background Although Southeast Asia is one of the most leptospirosis afflicted regions, little is known about the diversity and molecular epidemiology of the causative agents of this widespread and emerging zoonotic disease. Methodology/Principal findings We used whole genome sequencing to examine genetic variation in 75 Leptospira strains isolated from patients in the Lao PDR (Laos) between 2006 and 2017. Eleven serogroups from 4 Leptospira species and 43 cgMLST-defined clonal groups (CGs) were identified. The most prevalent CG was CG272 (n = 18, 26.8%), composed of L. interrogans serogroup Autumnalis isolates. This genotype was recovered throughout the 12-year period and was associated with deaths, and with a large outbreak in neighbouring Thailand. Genome analysis reveals that the CG272 strains form a highly clonal group of strains that have, for yet unknown reasons, recently spread in Laos and Thailand. Additionally, accessory genes clearly discriminate CG272 strains from the other Leptospira strains. Conclusions/Significance The present study reveals a high diversity of Leptospira genotypes in Laos, thus extending our current knowledge of the pan- and core-genomes of these life-threatening pathogens. Our results demonstrate that the CG272 strains belong to a unique clonal group, which probably evolved through clonal expansion following niche adaptation. Additional epidemiological studies are required to better evaluate the spread of this genotype in Southeast Asia. To further investigate the key factors driving the virulence and spread of these pathogens, more intense genomic surveillance is needed, combining detailed clinical and epidemiological data. Pathogenic Leptospira are the causative agents for leptospirosis, a neglected and emerging zoonosis occurring worldwide. In this study, we investigated the genetic diversity of Leptospira strains isolated from patients over a 12-year period in Lao PDR. Our genome analysis revealed a high diversity of Leptospira genotypes in this endemic country for leptospirosis, including a group of clonal strains which was responsible for a large outbreak in neighboring Thailand. Further progress in our understanding of the epidemiology of Leptospira circulating genotypes should contribute to the implementation of prevention and intervention measures to reduce the risk of leptospirosis transmission.
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Affiliation(s)
- Linda Grillová
- Biology of Spirochetes Unit, Institut Pasteur, Paris, France
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Matthew T. Robinson
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Anisone Chanthongthip
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
| | - Antony T. Vincent
- INRS-Centre Armand-Frappier Santé-Biotechnologie, Bacterial Symbionts Evolution, Laval, Canada
| | - Cecilia Nieves
- INRS-Centre Armand-Frappier Santé-Biotechnologie, Bacterial Symbionts Evolution, Laval, Canada
| | - Jan Oppelt
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States of America
| | | | - Céline Lorioux
- Biology of Spirochetes Unit, Institut Pasteur, Paris, France
| | - Manivanh Vongsouvath
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
| | - Mayfong Mayxay
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Institute of Research and Education Development (IRED), University of Health Sciences, Ministry of Health, Vientiane, Lao People’s Democratic Republic
| | - Ooyanong Phonemeexay
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
| | - Sayaphet Rattanavong
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
| | - Koukeo Phommasone
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
| | - Anousone Douangnouvong
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
| | - David Šmajs
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Frédéric J. Veyrier
- INRS-Centre Armand-Frappier Santé-Biotechnologie, Bacterial Symbionts Evolution, Laval, Canada
| | - Paul N. Newton
- Lao-Oxford-Mahosot Hospital-Wellcome Trust-Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Mathieu Picardeau
- Biology of Spirochetes Unit, Institut Pasteur, Paris, France
- * E-mail:
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Anh LTL, Balakirev AE, Chau NV. Investigation of multiple infections with zoonotic pathogens of rodents in northern Vietnam. J Vector Borne Dis 2021; 58:47-53. [PMID: 34818863 DOI: 10.4103/0972-9062.321750] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND & OBJECTIVES Rodents are important reservoir hosts for several zoonotic pathogens such as Rickettsia, Leptospira and Bartonella. Studies on the prevalence of zoonotic pathogens in Vietnam are data deficient, and there is a scarcity of data on multiple co-infections of zoonotic pathogens to date. This study examined the prevalence of Rickettsia spp., Leptospira spp., and Bartonella spp. and the co-infection of these pathogens in rodents captured in three provinces of northern Vietnam - Ha Giang, Lao Cai and Cao Bang. METHODS In total, 133 rodents of 25 species were screened for pathogen prevalence by real-time PCR. RESULTS Very high infection rates were found for each pathogen, with 42 of 133 rodents (31.6%) positive for Bartonella and 33 of 133 (24.8%) positive for Rickettsia (5.3% were positive for Rickettsia typhi, and 19.5% were infected with Rickettsia spotted fever group). Additionally, 24 rodents (18%) were positive for Leptospira. Double infection among these three pathogens was found in 26 of 133 rodents (18.8%), with the highest dual infection rates for Rickettsia and Bartonella co-infection (40%) and Leptospira and Bartonella co-infection (up to 40%), followed by Rickettsia and Leptospira co-infection (20% of animals investigated). One case of triple infection was documented for a house rat (Rattus cf. rattus species group) trapped in Ha Giang province. INTERPRETATION & CONCLUSION Our survey indicates that rodents in northern Vietnam may host multiple zoonotic pathogens simultaneously; thus, rodents contribute significantly to the increased risk of transmission of multiple zoonotic infections from animals to humans.
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Affiliation(s)
- Le Thi Lan Anh
- Joint Russian-Vietnamese Tropical Research and Technological Centre, Cau Giay, Hanoi, Vietnam
| | - Alexander E Balakirev
- Joint Russian-Vietnamese Tropical Research and Technological Centre, Cau Giay, Hanoi, Vietnam; A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia
| | - Nguyen Van Chau
- National Institute of Malariology, Parasitology and Entomology, Nam Tu Liem, Hanoi, Vietnam
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Ma Z, Wang X, Li M, Zhou D, Chen J. An ecological comparison study on the causal association between leptospirosis and moyamoya disease in Hubei, China, 2017-2019. Clin Neurol Neurosurg 2021; 210:107007. [PMID: 34741974 DOI: 10.1016/j.clineuro.2021.107007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/17/2021] [Accepted: 10/21/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The importance of environmental factors (especially leptospirosis) of moyamoya disease (MMD) has not been clarified. Here we investigated the epidemiological characteristics of MMD in Hubei province, China. METHODS We conducted a population-based study to describe the epidemiologic characteristics of MMD in Hubei province between 2017 and 2019. The regional clusters of the hot spots (high incidence) and cold spots (low incidence) of MMD were identified using the spatial statistical method. To evaluate the role of leptospirosis in MMD, we performed an ecological comparison study to evaluate whether the socioeconomic and environmental variables of hot spots are more suitable for leptospirosis spread. RESULTS The average annual sex and age adjusted incidence of MMD was 3.07 per 100,000 person-years from 2017 to 2019. The middle-aged had apparently higher incidence of MMD than the children. There existed an obvious geographic distribution difference of MMD at county level. The hot spots were identified mainly in the low mountainous and hilly terrain, while cold spots were located in the Jianghan Plains. Compared to cold spots, the hot spots had larger cattle density (32.0 vs 3.1, p = 0.002), higher percentages of rice field (85.6% vs 47.0%, p = 0.007), and lower elevation (33.6 vs 157.4, p < 0.001) CONCLUSIONS: There exists geographic distribution difference of MMD in Hubei province and was likely to be caused by leptospirosis in the early years. The MMD in China is dominant by middle-aged adults, which might be driven from leptospirosis outbreaks in the last century.
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Affiliation(s)
- Zhiyang Ma
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiong Wang
- Research Centre for Spatial Planning and Human-Environment System Simulation, School of Geography and Information Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
| | - Meifang Li
- School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China
| | - Da Zhou
- Information Statistical Bureau, Hubei Health Committee, Wuhan 430079, China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
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Mohd Hanapi IR, Sahimin N, Maackara MJB, Annisa AS, Abdul Mutalib RNS, Lewis JW, Behnke JM, Lau YL, Mohd Zain SN. Prevalence of anti-Leptospira antibodies and associated risk factors in the Malaysian refugee communities. BMC Infect Dis 2021; 21:1128. [PMID: 34724919 PMCID: PMC8561983 DOI: 10.1186/s12879-021-06830-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/28/2021] [Indexed: 12/03/2022] Open
Abstract
Background Refugees in Malaysia, who are afflicted by poverty, conflict and poor health, are vulnerable to a range of zoonotic infections in the deprived environmental and social conditions under which they live. Exposure to infections such as leptospirosis, for which rodents are primary hosts, is of particular concern. Methods A wellness program was conducted to determine the presence of antibodies against Leptospira (seroprevalence) in 11 refugee community schools and centers in the Klang Valley, Malaysia. A total of 433 samples were assessed for IgG and IgM antibodies against Leptospira, using enzyme-linked immunosorbent assays (ELISA). Results Overall Leptospira seroprevalence was 24.7%, with 3.0% being seropositive for anti-Leptospira IgG and 21.7% for anti-Leptospira IgM. Factors significantly associated with overall Leptospira seroprevalence included: age, ethnicity, pet ownership, knowledge of disease and awareness of disease fatality. For IgM seroprevalence, significant risk factors included sex, ethnicity, eating habits with hands, pet ownership, the presence of rats, walking in bare feet and water recreation visits. Conclusions These findings highlight the need for improvements in health and well-being among the refugee community through disease awareness programs and provision of healthy behavior programs, particularly in hygiene and sanitation through community engagement activities.
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Affiliation(s)
- Izzah Ruzana Mohd Hanapi
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Norhidayu Sahimin
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | | | - Aufa Shofia Annisa
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Raisya Nur Syazmeen Abdul Mutalib
- Department of Biomedical Science, Kulliyah of Allied Health Science, International Islamic University Malaysia, 25200, Kuantan, Pahang, Malaysia
| | - John W Lewis
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 OEX, UK
| | - Jerzy M Behnke
- School of Life Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Yee Ling Lau
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Siti Nursheena Mohd Zain
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
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In search of cost effective control of leptospirosis-a common zoonotic disease in developing countries. ASIAN BIOMED 2021; 15:151-152. [PMID: 37551331 PMCID: PMC10388761 DOI: 10.2478/abm-2021-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Regional Prevalence of Intermediate Leptospira spp. in Humans: A Meta-Analysis. Pathogens 2021; 10:pathogens10080943. [PMID: 34451407 PMCID: PMC8398916 DOI: 10.3390/pathogens10080943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 01/08/2023] Open
Abstract
Leptospirosis is one of the most widespread bacterial diseases caused by pathogenic Leptospira. There are broad clinical manifestations due to varied pathogenicity of Leptospira spp., which can be classified into three clusters such as pathogenic, intermediate, and saprophytic. Intermediate Leptospira spp. can either be pathogenic or non-pathogenic and they have been reported to cause mild to severe forms of leptospirosis in several studies, contributing to the disease burden. Hence, this study aimed to estimate the global prevalence of intermediate Leptospira spp. in humans using meta-analysis with region-wise stratification. The articles were searched from three databases which include PubMed, Scopus, and ScienceDirect. Seven studies were included consisting of two regions based on United Nations geo-scheme regions, among 469 records identified. Statistical analysis was performed using RevMan software. The overall prevalence estimate of intermediate Leptospira spp. in humans was 86% and the pooled prevalences were 96% and 17% for the American and Asia regions, respectively. The data also revealed that Leptospira wolffii was the most predominantly found compared to the other intermediate species identified from the included studies, which were Leptospira inadai and Leptospira broomii. The estimated prevalence data from this study could be used to develop better control and intervention strategies in combating human leptospirosis.
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Viroj J, Claude J, Lajaunie C, Cappelle J, Kritiyakan A, Thuainan P, Chewnarupai W, Morand S. Agro-Environmental Determinants of Leptospirosis: A Retrospective Spatiotemporal Analysis (2004-2014) in Mahasarakham Province (Thailand). Trop Med Infect Dis 2021; 6:115. [PMID: 34203491 PMCID: PMC8293432 DOI: 10.3390/tropicalmed6030115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/19/2021] [Accepted: 06/23/2021] [Indexed: 12/03/2022] Open
Abstract
Leptospirosis has been recognized as a major public health concern in Thailand following dramatic outbreaks. We analyzed human leptospirosis incidence between 2004 and 2014 in Mahasarakham province, Northeastern Thailand, in order to identify the agronomical and environmental factors likely to explain incidence at the level of 133 sub-districts and 1982 villages of the province. We performed general additive modeling (GAM) in order to take the spatial-temporal epidemiological dynamics into account. The results of GAM analyses showed that the average slope, population size, pig density, cow density and flood cover were significantly associated with leptospirosis occurrence in a district. Our results stress the importance of livestock favoring leptospirosis transmission to humans and suggest that prevention and control of leptospirosis need strong intersectoral collaboration between the public health, the livestock department and local communities. More specifically, such collaboration should integrate leptospirosis surveillance in both public and animal health for a better control of diseases in livestock while promoting public health prevention as encouraged by the One Health approach.
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Affiliation(s)
- Jaruwan Viroj
- Faculty of Public Health, Mahasarakham University, Mahasarakham 44150, Thailand;
| | - Julien Claude
- Institut des Sciences de l’Evolution, CNRS/UM/IRD/EPHE, Montpellier Université, 35095 Montpellier, France;
| | - Claire Lajaunie
- Inserm, UMR LPED (IRD, Aix-Marseille Université), 13001 Marseille, France;
| | - Julien Cappelle
- CIRAD, UMR ASTRE, 34398 Montpellier, France;
- UMR EpiA, INRA, VetAgro Sup, 69280 Marcy l’Etoile, France
| | - Anamika Kritiyakan
- Faculty of Veterinary Technology, Kasetsart University, Bangkok 10200, Thailand;
| | - Pornsit Thuainan
- Mahasarakham Provincial Public Health Office, Mahasarakham 44000, Thailand;
| | | | - Serge Morand
- CIRAD, UMR ASTRE, 34398 Montpellier, France;
- Mahasarakham Provincial Public Health Office, Mahasarakham 44000, Thailand;
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Han C, Li M, Haihambo N, Cao Y, Zhao X. Enlightenment on oscillatory properties of 23 class B notifiable infectious diseases in the mainland of China from 2004 to 2020. PLoS One 2021; 16:e0252803. [PMID: 34106977 PMCID: PMC8189525 DOI: 10.1371/journal.pone.0252803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/21/2021] [Indexed: 11/24/2022] Open
Abstract
A variety of infectious diseases occur in mainland China every year. Cyclic oscillation is a widespread attribute of most viral human infections. Understanding the outbreak cycle of infectious diseases can be conducive for public health management and disease surveillance. In this study, we collected time-series data for 23 class B notifiable infectious diseases from 2004 to 2020 using public datasets from the National Health Commission of China. Oscillatory properties were explored using power spectrum analysis. We found that the 23 class B diseases from the dataset have obvious oscillatory patterns (seasonal or sporadic), which could be divided into three categories according to their oscillatory power in different frequencies each year. These diseases were found to have different preferred outbreak months and infection selectivity. Diseases that break out in autumn and winter are more selective. Furthermore, we calculated the oscillation power and the average number of infected cases of all 23 diseases in the first eight years (2004 to 2012) and the next eight years (2012 to 2020) since the update of the surveillance system. A strong positive correlation was found between the change of oscillation power and the change in the number of infected cases, which was consistent with the simulation results using a conceptual hybrid model. The establishment of reliable and effective analytical methods contributes to a better understanding of infectious diseases’ oscillation cycle characteristics. Our research has certain guiding significance for the effective prevention and control of class B infectious diseases.
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Affiliation(s)
- Chuanliang Han
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
- * E-mail: (XZ); (CH)
| | - Meijia Li
- Faculty of Psychology and Center for Neuroscience, Vrije Universiteit Brussel, Brussels, Belgium
| | - Naem Haihambo
- Faculty of Psychology and Center for Neuroscience, Vrije Universiteit Brussel, Brussels, Belgium
| | - Yu Cao
- State Key Laboratory of Earth Surface Process and Resource Ecology and Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Xixi Zhao
- Beijing Anding Hospital, Capital Medical University, Beijing, China
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
- * E-mail: (XZ); (CH)
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Diz FA, Conceição GMDS. Human leptospirosis in the municipality of São Paulo, SP, Brazil: distribution and trend according to sociodemographic factors, 2007-2016. REVISTA BRASILEIRA DE EPIDEMIOLOGIA 2021; 24:e210034. [PMID: 34105597 DOI: 10.1590/1980-549720210034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/02/2021] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES This study aimed to describe the incidence and proportional lethality of human leptospirosis in the municipality of São Paulo, between 2007 and 2016, according to sociodemographic factors and characteristics of the disease, and to assess the temporal trends of incidence, according to age group and region of residence. METHODS Proportional distributions of leptospirosis cases of residents in the municipality were built and regression models with a Binomial Negative response were adjusted. RESULTS 2,201 cases of leptospirosis were registered, most of them being males (82%), aged between 20 to 59 years (64.6%), white (39%) or brown (32.8%), residing in the South (27.8%), East (23.8%) and North (18.5%) regions. The overall lethality was 15.1%. The risk was higher in the 20 to 59 age group. There was a downward trend in incidence in all age groups and regions, estimated at 5.6% per year. CONCLUSIONS Despite the downward trend in incidence, leptospirosis is a serious disease with high lethality, affecting mainly male individuals in the age groups considered economically active and living in the peripheral regions of the municipality.
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Affiliation(s)
- Fatima Aparecida Diz
- Center for Vector-borne Diseases and Zoonoses, Epidemiological Surveillance Division, Health Surveillance Coordination, Municipal Health Secretariat - São Paulo (SP), Brazil
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Leptospirosis in Ruminants in Yogyakarta, Indonesia: A Serological Survey with Mixed Methods to Identify Risk Factors. Trop Med Infect Dis 2021; 6:tropicalmed6020084. [PMID: 34065182 PMCID: PMC8163187 DOI: 10.3390/tropicalmed6020084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/26/2021] [Accepted: 05/10/2021] [Indexed: 11/16/2022] Open
Abstract
Leptospirosis is a zoonotic disease occurring worldwide with reproductive symptoms and production losses in livestock, while humans can suffer fatal renal failure. In Yogyakarta Special Province, Indonesia, there have been several outbreaks with high case fatality, demonstrating the public health importance, but there is limited understanding of the epidemiology. This study used an EcoHealth approach to ensure transdisciplinarity and community participation. Seroprevalence of Leptospira in animals was studied between October 2011 and May 2013 in 15 villages. Serum samples from 1404 cattle and 60 small ruminants were screened by a Microscopic Agglutination Test (MAT), first in pools, and then the individual positive samples were identified. Focus group discussions including farmers, village officials, and official stakeholders were used to explore knowledge and behavior of zoonotic diseases, particularly leptospirosis. Two small ruminants were seropositive for Leptospira icterohemorrhagiae. From the cattle, 3.7% were seropositive, and the most common serovars were Leptospira hardjo, followed by L. icterohemorrhagiae. Out of all farms, 5.6% had at least one positive cattle. Risk factor analyses showed that the risk of the farm being seropositive increased if the farmer used water from an open source, or if farming was not the main occupation. This study showed the presence of Leptospira spp. in ruminants in Yogyakarta and identified use of open water as a risk factor for the livestock. We also observed that the knowledge related to leptospirosis was low, and risky farm management practices were commonly employed.
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Dhawan S, Althaus T, Lubell Y, Suwancharoen D, Blacksell SD. Evaluation of the Panbio Leptospira IgM ELISA among Outpatients Attending Primary Care in Southeast Asia. Am J Trop Med Hyg 2021; 104:1777-1781. [PMID: 33724923 PMCID: PMC8103482 DOI: 10.4269/ajtmh.20-0818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 01/12/2021] [Indexed: 01/12/2023] Open
Abstract
Despite estimates suggesting Leptospira spp. being endemic in Southeast Asia, evidence remains limited. Diagnostic accuracy evaluations based on Leptospira ELISA mainly rely on hospitalized and severe patients; therefore, studies measuring the pathogen burden may be inaccurate in the community. We evaluated the Panbio Leptospira ELISA IgM among 656 febrile outpatients attending primary care in Chiangrai, Thailand, and Hlaing Tha Yar, Yangon, Myanmar. ELISA demonstrated limited diagnostic accuracy for the detection of acute leptospiral infection using the manufacturer recommended cutoff, with a sensitivity of 71.4% and specificity of 36.4%, and an area under the receiver operator characteristic curve value of 0.65 (95% CI: 0.41-0.89), compared with our reference test, the PCR assay. ELISA also performed poorly as a screening tool for detecting recent exposure to Leptospira spp. compared with the "gold-standard" microscopic agglutination test, with a specificity of 42.7%. We conclude that the utility of the Leptospira IgM ELISA for both serodiagnosis and seroprevalence is limited in our setting.
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Affiliation(s)
- Sandhya Dhawan
- Mahidol-Oxford Tropical Research Medicine Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Thomas Althaus
- Mahidol-Oxford Tropical Research Medicine Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand;,Nuffield Department of Medicine, Nuffield Department of Medicine Research Building, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Yoel Lubell
- Mahidol-Oxford Tropical Research Medicine Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand;,Nuffield Department of Medicine, Nuffield Department of Medicine Research Building, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Duangjai Suwancharoen
- Department of Livestock Development, National Institute of Animal Health, Ministry of Agriculture and Cooperatives, Bangkok, Thailand
| | - Stuart D. Blacksell
- Mahidol-Oxford Tropical Research Medicine Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand;,Nuffield Department of Medicine, Nuffield Department of Medicine Research Building, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom;,Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People’s Democratic Republic,Address correspondence to Stuart D. Blacksell, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand. E-mail:
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Tran VD, Phuong Mai LT, Thu NT, Linh BK, Than PD, Quyet NT, Dung LP, Ngoc Phuong Mai T, My Hanh NT, Hai H, Duong TN, Anh DD. Seroprevalence and serovar distribution of Leptospirosis among healthy people in Vietnam: Results from a multi-center study. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2021. [DOI: 10.1016/j.cegh.2021.100700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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First Detection of Bartonella spp. in Small Mammals from Rice Storage and Processing Facilities in Myanmar and Sri Lanka. Microorganisms 2021; 9:microorganisms9030658. [PMID: 33810195 PMCID: PMC8004705 DOI: 10.3390/microorganisms9030658] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022] Open
Abstract
(1) Background: Bartonella spp. are zoonotic bacteria with small mammals as main reservoirs. Bartonella spp. prevalence in small mammals from Myanmar and Sri Lanka are yet unknown. (2) Methods: Small mammals were snap trapped in Sri Lanka and Myanmar in urban surroundings. Spleens-derived DNA was screened for Bartonella spp. using conventional PCR based on three target genes. Positive samples were sequenced. (3) Results: 994 small mammals were collected comprising 6 species: Bandicota bengalensis, Bandicota indica, Rattus exulans, Rattus rattus, Mus booduga, and Suncus murinus. In Myanmar, the Bartonella prevalence in Bandicoot rats (68.47%) was higher than in Rattus rattus (41.67%), Rattus exulans (21.33%), and Suncus murinus (3.64%). Furthermore the prevalence in Myanmar (34%, n = 495) was twice as high as in Sri Lanka (16%, n = 499). In Sri Lanka, Bartonella spp. occurred almost exclusively in R. rattus. In Myanmar, Bartonella kosoyi was mainly detected (56%), followed by Bartonella sp. KM2529 (15%), Bartonella sp. SE-Bart D (12%) and Bartonella henselae (1%). In Sri Lanka, B. phoceensis (60%) and Bartonella sp. KM2581 (33%) were predominant. (4) Conclusions: Bartonella spp. were detected in all investigated small mammal species from Myanmar and Sri Lanka for the first time. Bartonella kosoyi and B. henselae are zoonotic. As these small mammals originated from urban settlements, human bartonellosis seems likely to occur.
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50
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Dreyfus A, Ruf MT, Mayer-Scholl A, Zitzl T, Loosli N, Bier NS, Hiereth S, Ulrich S, Poppert S, Straubinger RK, Stenos J, Tshokey T. Exposure to Leptospira spp. and Associated Risk Factors in the Human, Cattle and Dog Populations in Bhutan. Pathogens 2021; 10:pathogens10030308. [PMID: 33800914 PMCID: PMC8000015 DOI: 10.3390/pathogens10030308] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/30/2022] Open
Abstract
Leptospirosis is a neglected worldwide zoonotic bacterial disease with a high prevalence in subtropical and tropical countries. The prevalence of Leptospira spp. in humans, cattle and dogs is unknown in Bhutan. Therefore, we sought to find out whether humans, cattle or dogs had been infected in the past with leptospires by measuring antibodies in the serum. We therefore collected blood from 864 humans ≥13 years of age, 130 bovines and 84 dogs from different rural and urban areas in Bhutan and tested the serum for antibodies specific for leptospires with a screening of enzyme-linked immunosorbent assays (ELISA) and a confirmatory microscopic agglutination test (MAT). In humans, 17.6% were seropositive by ELISA and 1.6% by MAT. The seropositivity was stronger in bovines (36.9%) and dogs (47.6%). "Having had a fever recently" (OR 5.2, p = 0.004), "working for the military" (OR 26.6, p = 0.028) and "being unemployed" (OR 12.9, p = 0.041) (reference category = housemaker) were statistically significantly associated with seropositivity when controlled for the effects of other risk factors. However, due to the small number of positive test results, the findings on risk factors should be interpreted with caution. Based on the serogroups found in the three species, dogs could be a source of infection for humans, or dogs and humans are exposed to the same environmental risk factors Clinical leptospirosis in humans and domestic animals should be investigated by testing blood and urine for the presence of leptospires by molecular methods (qPCR).
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Affiliation(s)
- Anou Dreyfus
- Department of Medicine, Swiss Tropical and Public Health Institute, 4055 Basel, Switzerland; (M.-T.R.); (N.L.); (S.P.)
- Medical Faculty, University of Basel, 4055 Basel, Switzerland
- Epidemiology and Clinical Research Unit, Institut Pasteur Madagascar, Antananarivo 101, Madagascar
- Correspondence:
| | - Marie-Thérèse Ruf
- Department of Medicine, Swiss Tropical and Public Health Institute, 4055 Basel, Switzerland; (M.-T.R.); (N.L.); (S.P.)
- Medical Faculty, University of Basel, 4055 Basel, Switzerland
| | - Anne Mayer-Scholl
- Department of Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (A.M.-S.); (N.S.B.)
| | - Theresa Zitzl
- Institute of Hygiene and Infectious Diseases of Animals, Justus Liebig University, 35392 Giessen, Germany;
- Chair for Bacteriology and Mycology, Institute for Infectious Diseases and Zoonoses, Faculty of Veterinary Medicine, Ludwig-Maximilians University Munich, 80539 Munich, Germany; (S.H.); (S.U.); or (R.K.S.)
| | - Nadine Loosli
- Department of Medicine, Swiss Tropical and Public Health Institute, 4055 Basel, Switzerland; (M.-T.R.); (N.L.); (S.P.)
- Medical Faculty, University of Basel, 4055 Basel, Switzerland
| | - Nadja Seyhan Bier
- Department of Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (A.M.-S.); (N.S.B.)
| | - Stephanie Hiereth
- Chair for Bacteriology and Mycology, Institute for Infectious Diseases and Zoonoses, Faculty of Veterinary Medicine, Ludwig-Maximilians University Munich, 80539 Munich, Germany; (S.H.); (S.U.); or (R.K.S.)
| | - Sebastian Ulrich
- Chair for Bacteriology and Mycology, Institute for Infectious Diseases and Zoonoses, Faculty of Veterinary Medicine, Ludwig-Maximilians University Munich, 80539 Munich, Germany; (S.H.); (S.U.); or (R.K.S.)
| | - Sven Poppert
- Department of Medicine, Swiss Tropical and Public Health Institute, 4055 Basel, Switzerland; (M.-T.R.); (N.L.); (S.P.)
- Medical Faculty, University of Basel, 4055 Basel, Switzerland
| | - Reinhard K. Straubinger
- Chair for Bacteriology and Mycology, Institute for Infectious Diseases and Zoonoses, Faculty of Veterinary Medicine, Ludwig-Maximilians University Munich, 80539 Munich, Germany; (S.H.); (S.U.); or (R.K.S.)
| | - John Stenos
- Australian Rickettsial Reference Laboratory, University Hospital Geelong, Geelong, VIC 3220, Australia;
| | - Tshokey Tshokey
- Department of Pathology and Laboratory Medicine, Jigme Dorji Wangchuck National Referral Hospital, Thimphu 11001, Bhutan;
- Faculty of Postgraduate Medicine, Khesar Gyalpo University of Medical Sciences of Bhutan, Thimphu 11001, Bhutan
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