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Hidalgo-Gonzalez LA, Salgado-Lopez J, Pineda-Rodriguez SA, Martinez A, Romero-Valdovinos M, Martinez-Hernandez F, Rendon-Franco E, Olivo-Diaz A, Maravilla P, Rodriguez-Bataz E. Identification of Blastocystis sp. in school children from a rural Mexican village: subtypes and risk factors analysis. Parasitol Res 2023:10.1007/s00436-023-07872-w. [PMID: 37191687 DOI: 10.1007/s00436-023-07872-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/08/2023] [Indexed: 05/17/2023]
Abstract
Blastocystis sp. is a common eukaryotic microorganism that colonizes the intestinal tract of several animals, including humans, although its role as a pathogen is still unclear. In the present study, we report the prevalence and risk factors associated with Blastocystis infection in scholars from a rural community in Mexico. A cross-sectional observational study was carried out on schoolchildren aged 3 to 15 years old; fecal samples were analyzed by culture, Faust technique, and molecular analysis. In addition, a structured questionnaire was applied to identify possible risk factors. Of the 177 samples obtained, Blastocystis sp. was the microorganism that presented the highest frequency (n=78, 44%), and included the following subtypes (STs): ST1 (n=43, 56.5%), ST2 (n=18, 23.6%), and ST3 (n=15, 19.7%); Blastocystis STs were not identified in two cases. No associating factors were found between Blastocystis infection or among STs vs. symptoms. During bivariate analysis, no statistically significant risk factors were found, except for the variable of "eating sweets, snacks, and handmade food on the way home" (p=0.04). Therefore, it is plausible to conclude that schoolchildren become infected with Blastocystis sp. mainly outside their homes, perhaps by eating contaminated handmade food on their way to or from school; however, this variable should be evaluated in detail in future studies.
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Affiliation(s)
- Leydi Anahi Hidalgo-Gonzalez
- Laboratorio de Investigacion en Parasitologia, Facultad de Ciencias Quimico Biologicas, Universidad Autonoma de Guerrero, El Centenario, 39086, Chilpancingo, Guerrero, Mexico
| | - Jeanille Salgado-Lopez
- Laboratorio de Investigacion en Parasitologia, Facultad de Ciencias Quimico Biologicas, Universidad Autonoma de Guerrero, El Centenario, 39086, Chilpancingo, Guerrero, Mexico
| | - Sandra Alheli Pineda-Rodriguez
- Laboratorio de Investigacion en Parasitologia, Facultad de Ciencias Quimico Biologicas, Universidad Autonoma de Guerrero, El Centenario, 39086, Chilpancingo, Guerrero, Mexico
| | - Arony Martinez
- Hospital General "Dr. Manuel Gea Gonzalez", 14080, Mexico City, Mexico
| | | | | | - Emilio Rendon-Franco
- Departamento de Produccion Agricola y Animal, Universidad Autonoma Metropolitana, Unidad Xochimilco, Mexico City, Mexico
| | | | - Pablo Maravilla
- Hospital General "Dr. Manuel Gea Gonzalez", 14080, Mexico City, Mexico.
| | - Elvia Rodriguez-Bataz
- Laboratorio de Investigacion en Parasitologia, Facultad de Ciencias Quimico Biologicas, Universidad Autonoma de Guerrero, El Centenario, 39086, Chilpancingo, Guerrero, Mexico.
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Abadilla MEG, Paller VGV. T oxocara canis prevalence in soil, dog stool, and human serum samples from a rural village in Los Baños, Laguna, Philippines. J Parasit Dis 2022; 46:889-895. [PMID: 36091278 PMCID: PMC9458842 DOI: 10.1007/s12639-022-01507-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 06/03/2022] [Indexed: 11/30/2022] Open
Abstract
Toxocariasis is a zoonotic disease caused by Toxocara spp. from dogs and cats. The Philippines is among the countries recorded to have abundant stray cats and dogs; however, few studies have been done to elucidate the transmission dynamics and the potential risks associated with toxocariasis. This study was conducted in a rural village in Los Baños, Laguna, Philippines to determine the prevalence of toxocariasis among selected public schoolchildren and identify some risk factors that can contribute to the transmission dynamics of toxocariasis in the study site. To elucidate this, serum samples from 50 public school children (ages 8-13) were tested using a Toxocara canis IgG ELISA kit, while 60 randomly selected households were chosen for collection of soil and dog samples. Sixty soil and dog fecal samples were collected and processed through modified sucrose flotation technique and formalin-ethyl acetate concentration technique, respectively. Knowledge, attitudes and practices (KAP) survey was conducted per household to determine potential risk factors. Results revealed that 60% of the public-school children examined were positive for anti-Toxocara canis antibodies, while 38.3% of the soil samples and 28% of the dog fecal samples were found positive for contamination with Toxocara ova. Deworming of pets was found to be significantly correlated to risk factors of infection (p < 0.05). This study highlights the potential risks of toxocariasis infection of residents in rural communities. Strict implementation of ordinances related to responsible pet ownership as well as promotion of sanitation and hygiene should be employed.
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Affiliation(s)
- Moses Edric G. Abadilla
- Animal Biology Division, Institute of Biological Sciences, College of Arts and Sciences, University of the Philippines Los Baños, 4030 Laguna, Philippines
| | - Vachel Gay V. Paller
- Animal Biology Division, Institute of Biological Sciences, College of Arts and Sciences, University of the Philippines Los Baños, 4030 Laguna, Philippines
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Horiuchi S, Nakdouangma B, Khongsavat T, Kubota S, Yamaoka K. Potential factors associated with institutional childbirth among women in rural villages of Lao People's Democratic Republic: a preliminary study. BMC Pregnancy Childbirth 2020; 20:89. [PMID: 32041566 PMCID: PMC7011605 DOI: 10.1186/s12884-020-2776-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 01/28/2020] [Indexed: 11/21/2022] Open
Abstract
Background The provision of quality health services has been a global priority to reduce neonatal and maternal deaths. In Lao People’s Democratic Republic (Lao PDR), the coverage of institutional childbirth stayed at a low level regardless of a sharp increase in the coverage of antenatal care (ANC) and fee exemption. The aim of the present study was to preliminary explore factors associated with increased institutional childbirth and the association between ANC attendance and maternal knowledge among women in rural villages of Lao PDR. Methods A secondary data analysis was conducted using data collected through a pilot survey in Sekong province in Lao PDR. The study participants were women with children under 5 years of age in villages within 10 km (km) from health centers staffed with skilled birth attendants. Data were collected via a face-to-face interview using a semi-structured questionnaire and were analysed using logistic regression models to estimate odds ratios (ORs) and their 95% confidence intervals (CIs) for having institutional childbirth in relation to potential factors. Results A total of 302 women, 203 (67.2%) of whom gave birth at a health facility. 277 (91.7%) attended ANC at least once. Sixty-nine women (22.9%) had received no formal education, 272 (90.1%) were of an ethnic minority, 174 (57.6%) were unwaged and 99 (32.8%) lived more than 6 km from the nearest health facility. 51 (16.6%) did not know about birth complications at interview. Institutional childbirth was negatively associated with a lack of maternal knowledge about birth complications (OR, 0.27; 95% Cl, 0.14–0.54) after adjusting for covariates. Although there were few women who did not received ANC, the results suggested ANC might not be associated with maternal knowledge about birth complications (OR, 1.87; 95% Cl, 0.43–8.12). Conclusions The present study suggests that maternal knowledge about birth complications is an important factor in increasing the institutional childbirth in rural villages of Lao PDR where majority of residents were ethnic minority. Improving quality of ANC and attitude among health care providers may be key to increasing health-seeking behavior. However, further research is needed to understand factors influencing choice of place of childbirth.
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Affiliation(s)
- Sayaka Horiuchi
- Teikyo University Graduate School of Public Health, 2-11-1 Kaga, Itabashi, Tokyo, Japan. .,Center for Birth Cohort Studies, University of Yamanashi, 1110, Shimokato, Chuo, Yamanashi, Japan.
| | | | | | - Shogo Kubota
- World Health Organization, Vientiane, Lao People's Democratic Republic
| | - Kazue Yamaoka
- Teikyo University Graduate School of Public Health, 2-11-1 Kaga, Itabashi, Tokyo, Japan
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Li W, Wang C, Wang H, Chen J, Shen H, Shen G, Huang Y, Wang R, Wang B, Zhang Y, Chen H, Chen Y, Su S, Lin N, Tang J, Li Q, Wang X, Liu J, Tao S. Atmospheric polycyclic aromatic hydrocarbons in rural and urban areas of northern China. Environ Pollut 2014; 192:83-90. [PMID: 24905256 DOI: 10.1016/j.envpol.2014.04.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 04/29/2014] [Accepted: 04/30/2014] [Indexed: 06/03/2023]
Abstract
Air pollution in rural China has often been ignored, especially for the less developed west China. Atmospheric polycyclic aromatic hydrocarbons (PAHs) were measured monthly at 11 rural sites (5 rural villages and 6 rural fields) together with 7 urban stations in northern China between April 2010 and March 2011. PAH concentrations at rural village sites were similar to those in urban areas and significantly higher than those in rural fields, indicating severe contamination in rural villages. PAH concentrations in the west were similar to those in the more developed North China Plain, and higher than those along the coast. Such a geographical distribution is mainly caused by the differences in residential energy consumption and meteorological conditions, which can explain approximately 48% of the total variation in PAH concentrations. With heavy dependence on biofuel combustion for heating, seasonality in rural areas is more profound than that in urban areas.
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Affiliation(s)
- Wei Li
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Chen Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Hongqijie Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Jiwei Chen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Huizhong Shen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Guofeng Shen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Ye Huang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Rong Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Bin Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Yanyan Zhang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Han Chen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Yuanchen Chen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Shu Su
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Nan Lin
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Jianhui Tang
- Yantai Institute of Coastal Zone Research, CAS, Yantai, Shandong 264003, PR China
| | - Qingbo Li
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, PR China
| | - Xilong Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Junfeng Liu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Shu Tao
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China.
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