Osong Public Health and Research Perspectives

Original Articles

The 100 top-cited articles on scrub typhus: a bibliometric analysis: Taha Hussein Musa, Wei Li, Joseph Kawuki, Pingmin Wei; Osong Public Health Res Perspect. 2021;12(2):126-135. Published online April 29, 2021; DOI: https://doi.org/10.24171/j.phrp.2021.12.2.10

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Objectives
The aims of this study were to analyze the characteristics of the 100 top-cited articles on scrub typhus (ST), and to assess the present research landscape and future research directions using bibliometric analysis.
Methods
Web of Science was used to conduct a bibliometric analysis of the 100 top-cited articles on ST. The articles were analyzed by publication year, number of citations, document type, journals, keywords, institutions, country of origin, and authorship.
Results
The top 100 articles on ST were published between 1945 to 2017. The number of citations ranges from 39 to 227 and the interquartile range was 35.5. The United States published the highest number (n=21) of articles. Mahidol University was the most prolific institution in terms of articles (n=14). The American Journal of Tropical Medicine and Hygiene was the journal with the most articles (n=14), and Paris DH was the most productive author in terms of the Hirsh-index, which was 10 for that author. The study revealed a significant correlation between the total number of citations and the number of authors (r=0.668, p<0.001), number of institutions (r=0.692, p<0.001), number of years since publication (r=0.869, p<0.001), and number of countries involved (r=0.963, p<0.001).
Conclusion
The findings of this study provide landmarks in the publication and citation frequency of the most influential articles on ST. In addition, this study provides useful information for readers and health policy-makers in evaluating the literature on ST.

Citations

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Top-50 cited articles on cysticercosis and neurocysticercosis
Gregorio Gonzalez-Alcaide, Nestor Sosa, Fatima Valero-Samper, Isabel Belinchon-Romero, Jose-Manuel Ramos-Rincon
Medicine.2024; 103(9): e37268. CrossRef
Cancer and COVID-19 research studies with team science: a bibliometric study
Arezoo Ghamgosar, Sirous Panahi, Leila Nemati-Anaraki
Journal of Interprofessional Care.2023; 37(4): 568. CrossRef
Investigating Empirical evidence on the Epidemiology, Diagnosis and Bibliometric analysis of the 100 topmost cited publications on Tuberculosis Disease
Taha Hussein Musa, Lovel Fornah, Tosin Yinka Akintunde, Idriss Hussein Musa, Hassan Hussein Musa, Gabriel Maxwell Turay , Maram Abdulhakim Abdulkarem Al-sharai
PAN AFRICA SCIENCE JOURNAL.2023;[Epub] CrossRef
Gum: Sytamatic and thematic analysis of the top 100 most-cited articles indexed in the Scopus database
Hassan Hussein Musa, Akintunde Tosin Yinka, Olayinka Oderinde, Taha Hussein Musa, Abdelkareem A. Ahmed, Jaafar Sulieman Fedail, Adriano Mollica, Azzurra Stefanucci, Demin Cai
Bioactive Carbohydrates and Dietary Fibre.2023; 30: 100359. CrossRef
Knowledge mapping and visualization of current sarcopenia and cancer research: a bibliometric analysis
Marwa Mohammed, Jianan Li
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The 100 top-cited articles on childhood obesity: a bibliometric analysis
Joseph Kawuki, Taha Hussein Musa, Upama Ghimire, Nathan Obore, Shireen Salome Papabathini
Global Health Journal.2022; 6(3): 136. CrossRef
The associations between scientific collaborations of LIS research and its policy impact
Zhihong Huang, Qianjin Zong, Xuerui Ji
Scientometrics.2022; 127(11): 6453. CrossRef
A systematic and thematic analysis of the top 100 cited articles on mRNA vaccine indexed in Scopus database
Hassan H. Musa, Taha H. Musa
Human Vaccines & Immunotherapeutics.2022;[Epub] CrossRef
The 100 Most Cited Articles on Dental Anomalies: a bibliometric analysis
Glenda VİEİRA DE SOUSA, Maria Eduarda FERREİRA DE SOUZA, Eloísa CESÁRİO, Patrícia SANTOS
Cumhuriyet Dental Journal.2022; 25(4): 330. CrossRef

Annual Fluctuation in Chigger Mite Populations and Orientia Tsutsugamushi Infections in Scrub Typhus Endemic Regions of South Korea: Seong Yoon Kim, Byoungchul Gill, Bong Gu Song, Hyuk Chu, Won Il Park, Hee Il Lee, E-hyun Shin, Shin-Hyeong Cho, Jong Yul Roh; Osong Public Health Res Perspect. 2019;10(6):351-358. Published online December 31, 2019; DOI: https://doi.org/10.24171/j.phrp.2019.10.6.05

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Abstract PDF

Objectives

Chigger mites are vectors for scrub typhus. This study evaluated the annual fluctuations in chigger mite populations and Orientia tsutsugamushi infections in South Korea.

Methods

During 2006 and 2007, chigger mites were collected monthly from wild rodents in 4 scrub typhus endemic regions of South Korea. The chigger mites were classified based on morphological characteristics, and analyzed using nested PCR for the detection of Orientia tsutsugamushi.

Results

During the surveillance period, the overall trapping rate for wild rodents was 10.8%. In total, 17,457 chigger mites (representing 5 genera and 15 species) were collected, and the average chigger index (representing the number of chigger mites per rodent), was 31.7. The monthly chigger index was consistently high (> 30) in Spring (March to April) and Autumn (October to November). The mite species included Leptotrombidium pallidum (43.5%), L. orientale (18.9%), L. scutellare (18.1%), L. palpale (10.6%), and L. zetum (3.6%). L. scutellare and L. palpale populations, were relatively higher in Autumn. Monthly O. tsutsugamushi infection rates in wild rodents (average: 4.8%) and chigger mites (average: 0.7%) peaked in Spring and Autumn.

Conclusion

The findings demonstrated a bimodal pattern of the incidence of O. tsutsugamushi infections. Higher infection rates were observed in both wild rodents and chigger mites, in Spring and Autumn. However, this did not reflect the unimodal incidence of scrub typhus in Autumn. Further studies are needed to identify factors, such as human behavior and harvesting in Autumn that may explain this discordance.

Citations

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Eco-epidemiology of rodent-associated trombiculid mites and infection with Orientia spp. in Southern Chile
María Carolina Silva de la Fuente, Caricia Pérez, Constanza Martínez-Valdebenito, Ruth Pérez, Cecilia Vial, Alexandr Stekolnikov, Katia Abarca, Thomas Weitzel, Gerardo Acosta-Jamett, Jessica N. Ricaldi
PLOS Neglected Tropical Diseases.2023; 17(1): e0011051. CrossRef
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Yu Guo, Xian-Guo Guo, Wen-Yu Song, Yan Lv, Peng-Wu Yin, Dao-Chao Jin
Animals.2023; 13(9): 1480. CrossRef
Epidemiological characteristics of cases with scrub typhus and their correlation with chigger mite occurrence (2019–2021): A focus on case occupation and activity locations
Se‐Jin Jeong, Jin‐Hwan Jeon, Kyung won Hwang
Entomological Research.2023; 53(7): 247. CrossRef
Prevalence of chigger mites and Orientia tsutsugamushi strains in northern regions of Gangwon-do, Korea
Soojin Kim, In Yong Lee, Sezim Monoldorova, Jiro Kim, Jang Hoon Seo, Tai-Soon Yong, Bo Young Jeon
Parasites, Hosts and Diseases.2023; 61(3): 263. CrossRef
Infestation and distribution of chiggers on the Anderson's white‐bellied rats in southwest China
Yu Guo, Xian‐Guo Guo, Pei‐Ying Peng, Yan Lv, Rong Xiang, Wen‐Yu Song, Xiao‐Bin Huang
Veterinary Medicine and Science.2023; 9(6): 2920. CrossRef
Seroprevalence and Genotypic Characterization of Orientia tsutsugamushi in Febrile Pediatric Patients Admitted in Tertiary Care Hospital of Chennai, South India
Rajagopal Murali, Sivasambo Kalpana, Panneerselvam Satheeshkumar, Prabu Dhandapani
Journal of Pure and Applied Microbiology.2023; 17(4): 2232. CrossRef
Infestation and seasonal fluctuation of chigger mites on the Southeast Asian house rat (Rattus brunneusculus) in southern Yunnan Province, China
Yan Lv, Xianguo Guo, Daochao Jin, Wenyu Song, Peiying Peng, Hao Lin, Rong Fan, Chengfu Zhao, Zhiwei Zhang, Keyu Mao, Tijun Qian, Wenge Dong, Zhihua Yang
International Journal for Parasitology: Parasites .2021; 14: 141. CrossRef
Nationwide Incidence of Chigger Mite Populations and Molecular Detection of Orientia tsutsugamushi in the Republic of Korea, 2020
Min-Goo Seo, Bong-Goo Song, Tae-Kyu Kim, Byung-Eon Noh, Hak Seon Lee, Wook-Gyo Lee, Hee Il Lee
Microorganisms.2021; 9(8): 1563. CrossRef

Brief Report

Trends in the Incidence of Scrub Typhus: The Fastest Growing Vector-Borne Disease in Korea: Mi Ae Jeong, Seung-Ki Youn, Young-Kwon Kim, Hyungmin Lee, Sun-Ja Kim, Aeree Sohn; Osong Public Health Res Perspect. 2013;4(3):166-169. Published online June 30, 2013; DOI: https://doi.org/10.1016/j.phrp.2013.04.007

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Abstract PDF

Scrub typhus, also called tsutsugamushi disease, is classified as a Group 3 disease in Korea according to the National Notifiable Diseases Surveillance Systems. It is an infectious disease transmitted to humans through the bite of mites that are infected with an intracellular parasite called Orientia tsutsugamushi (Family: Rickettsiaceae). This study aims to identify the demographic characteristics of the infected cases according to profession, region, gender, and onset period and provide a basic data for prevention and control of the disease in the infected patients. Between 2001 and 2010, 16,741 men (36.3%) and 29,373 women (63.7%) were reported to have been infected with scrub typhus, with men being 1.6 times less infected than women. When classified according to age, it was found that 4421 persons (9.6%) were under 40 years of age; 6601 (13.1%) in their 40s; 9714 (21.1%) in their 50s; 13,067 (28.3%) in 60s; 10,128 (22.0%) in their 70s; and 2723 (5.9%) aged 80 or more. The elderly (60 years or older) represented more than half of the infected cases. When the infections were classified according to region, it was found that the county residents had the major share of infection, with a total of 1583 infected cases (59.85).

Citations

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The American Journal of Tropical Medicine and Hygi.2018; 98(2): 616. CrossRef
Clinical Aspects of Scrub Typhus Initially Misdiagnosed as Kawasaki Disease
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Iranian Journal of Pediatrics.2018;[Epub] CrossRef
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Paul Trowbridge, Divya P., Prasanna S. Premkumar, George M. Varghese
Tropical Medicine & International Health.2017; 22(5): 576. CrossRef
Central Nervous System Infection Associated with Orientia tsutsugamushi in South Korea
Kon Chu, Seon-Jae Ahn, Woo-Jin Lee, Jin-Sun Jun, Jung-Ah Lim, Keun-Hwa Jung, Kyung-Il Park, Jun-Sang Sunwoo, Han Sang Lee, Sang Kun Lee, Ki-Young Jung, Jangsup Moon, Soon-Tae Lee
The American Journal of Tropical Medicine and Hygi.2017; 97(4): 1094. CrossRef
Generation of protective immunity against Orientia tsutsugamushi infection by immunization with a zinc oxide nanoparticle combined with ScaA antigen
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Journal of Nanobiotechnology.2016;[Epub] CrossRef
Immunization with an Autotransporter Protein of Orientia tsutsugamushi Provides Protective Immunity against Scrub Typhus
Na-Young Ha, Prashant Sharma, Gwanghun Kim, Yuri Kim, Chan-Ki Min, Myung-Sik Choi, Ik-Sang Kim, Nam-Hyuk Cho, David H Walker
PLOS Neglected Tropical Diseases.2015; 9(3): e0003585. CrossRef
Current situation of scrub typhus in South Korea from 2001–2013
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Parasites & Vectors.2015;[Epub] CrossRef
18F-FDG PET/CT Findings of Scrub Typhus
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Original Articles

Are There Spatial and Temporal Correlations in the Incidence Distribution of Scrub Typhus in Korea?: Maengseok Noh, Youngjo Lee, Chaeshin Chu, Jin Gwack, Seung-Ki Youn, Sun Huh; Osong Public Health Res Perspect. 2013;4(1):39-44. Published online February 28, 2013; DOI: https://doi.org/10.1016/j.phrp.2013.01.002

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Abstract PDF

Objectives
A hierarchical generalized linear model (HGLM) was applied to estimate the transmission pattern of scrub typhus from 2001 to 2011 in the Republic of Korea, based on spatial and temporal correlation.
Methods
Based on the descriptive statistics of scrub typhus incidence from 2001 to 2011 reported to the Korean Centers for Disease Control and Prevention, the spatial and temporal correlations were estimated by HGLM. Incidences according to age, sex, and year were also estimated by the best-fit model out of nine HGLMs. A disease map was drawn to view the annual regional spread of the disease.
Results
The total number of scrub typhus cases reported from 2001 to 2011 was 51,136: male, 18,628 (36.4%); female, 32,508 (63.6%). The best-fit model selected was a combination of the spatial model (Markov random-field model) and temporal model (first order autoregressive model) of scrub typhus transmission. The peak incidence was 28.80 per 100,000 persons in early October and the peak incidence was 40.17 per 100,000 persons in those aged 63.3 years old by the best-fit HGLM. The disease map showed the spread of disease from the southern central area to a nationwide area, excepting Gangwon-do (province), Gyeongsangbuk-do (province), and Seoul.
Conclusion
In the transmission of scrub typhus in Korea, there was a correlation to the incidence of adjacent areas, as well as that of the previous year. According to the disease map, we are unlikely to see any decrease in the incidence in the near future, unless ongoing aggressive measures to prevent the exposure to the vector, chigger mites, in rural areas, are put into place.

Citations

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Prevalence of chigger mites and Orientia tsutsugamushi strains in northern regions of Gangwon-do, Korea
Soojin Kim, In Yong Lee, Sezim Monoldorova, Jiro Kim, Jang Hoon Seo, Tai-Soon Yong, Bo Young Jeon
Parasites, Hosts and Diseases.2023; 61(3): 263. CrossRef
Urine Metabolite of Mice with Orientia tsutsugamushi Infection
Sangho Choi, Do-Hwan Ahn, Min-Gyu Yoo, Hye-Ja Lee, Seong Beom Cho, Hee-Bin Park, Sung Soon Kim, Hyuk Chu
The American Journal of Tropical Medicine and Hygi.2023; 108(2): 296. CrossRef
Spatiotemporal dynamics and environmental determinants of scrub typhus in Anhui Province, China, 2010–2020
Xianyu Wei, Junyu He, Wenwu Yin, Ricardo J. Soares Magalhaes, Yanding Wang, Yuanyong Xu, Liang Wen, Yehuan Sun, Wenyi Zhang, Hailong Sun
Scientific Reports.2023;[Epub] CrossRef
Epidemiological characteristics of cases with scrub typhus and their correlation with chigger mite occurrence (2019–2021): A focus on case occupation and activity locations
Se‐Jin Jeong, Jin‐Hwan Jeon, Kyung won Hwang
Entomological Research.2023; 53(7): 247. CrossRef
Epidemiological characteristics and spatiotemporal patterns of scrub typhus in Yunnan Province from 2006 to 2017
Pei-Ying Peng, Lei Xu, Gu-Xian Wang, Wen-Yuan He, Ting-Liang Yan, Xian-Guo Guo
Scientific Reports.2022;[Epub] CrossRef
Clinical and Laboratory Predictors associated with Complicated Scrub Typhus
Mi-Hee Kim, Si-Hyun Kim, Jung-Hyun Choi, Seong-Heon Wie
Infection & Chemotherapy.2019; 51(2): 161. CrossRef
Awareness and Work-Related Factors Associated with Scrub Typhus: A Case-Control Study from South Korea
Dong-Seob Kim, Dilaram Acharya, Kwan Lee, Seok-Ju Yoo, Ji-Hyuk Park, Hyun-Sul Lim
International Journal of Environmental Research an.2018; 15(6): 1143. CrossRef
Estimating the burden of scrub typhus: A systematic review
Ana Bonell, Yoel Lubell, Paul N. Newton, John A. Crump, Daniel H. Paris, Janet Foley
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Spatiotemporal Dynamics of Scrub Typhus Transmission in Mainland China, 2006-2014
Yi-Cheng Wu, Quan Qian, Ricardo J. Soares Magalhaes, Zhi-Hai Han, Wen-Biao Hu, Ubydul Haque, Thomas A. Weppelmann, Yong Wang, Yun-Xi Liu, Xin-Lou Li, Hai-Long Sun, Yan-Song Sun, Archie C. A. Clements, Shen-Long Li, Wen-Yi Zhang, Mathieu Picardeau
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Larval Chigger Mites Collected from Small Mammals in 3 Provinces, Korea
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Spatial Distribution Analysis of Scrub Typhus in Korea: Hong Sung Jin, Chaeshin Chu, Dong Yeob Han; Osong Public Health Res Perspect. 2013;4(1):4-15. Published online February 28, 2013; DOI: https://doi.org/10.1016/j.phrp.2012.12.007

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Abstract PDF

Objective: This study analyzes the spatial distribution of scrub typhus in Korea.
Methods
A spatial distribution of Orientia tsutsugamushi occurrence using a geographic information system (GIS) is presented, and analyzed by means of spatial clustering and correlations.
Results
The provinces of Gangwon-do and Gyeongsangbuk-do show a low incidence throughout the year. Some districts have almost identical environmental conditions of scrub typhus incidence. The land use change of districts does not directly affect the incidence rate.
Conclusion
GIS analysis shows the spatial characteristics of scrub typhus. This research can be used to construct a spatial-temporal model to understand the epidemic tsutsugamushi.

Citations

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Emergence of “urban scrub typhus” during Monsoon season in an urban pocket and biodiversity hotspot of New Delhi, India
InamDanish Khan, Pradeep Bahal, Bhagwat Singh, Pallawi Priya, Rahul Pandey, Anuradha Makkar, AshokKumar Jindal
Journal of Marine Medical Society.2022; 24(2): 124. CrossRef
Scrub typhus and antibiotic-resistant Orientia tsutsugamushi
Chin-Te Lu, Lih-Shinn Wang, Po-Ren Hsueh
Expert Review of Anti-infective Therapy.2021; 19(12): 1519. CrossRef
Three‐year surveillance (2016–2018) of chigger mites vector for tsutsugamushi disease in the Hwaseong‐Si area of Gyeonggi‐Do, Republic of Korea
Hojong Jun, Seung Jegal, Myung‐Deok Kim‐Jeon, Jong Yul Roh, Wook‐Gyo Lee, Seo Hye Park, Seong Kyu Ahn, Jinyoung Lee, Young Woo Gong, Mun Ju Kwon, Young Yil Bahk, Tong‐Soo Kim
Entomological Research.2020; 50(2): 63. CrossRef
Surveillance of Chigger Mite Vectors for Tsutsugamushi Disease in the Hwaseong Area, Gyeonggi-do, Republic of Korea, 2015
Young Yil Bahk, Hojong Jun, Seo Hye Park, Haneul Jung, Seung Jegal, Myung-Deok Kim-Jeon, Jong Yul Roh, Wook-Gyo Lee, Seong Kyu Ahn, Jinyoung Lee, Kwangsig Joo, Young Woo Gong, Mun Ju Kwon, Tong-Soo Kim
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Jaewon Kwak, Soojun Kim, Gilho Kim, Vijay Singh, Seungjin Hong, Hung Kim
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Predictors of scrub typhus: a study from a tertiary care center
Vijay Kumar Agarwal, Gangireddy Krishna Mohan Reddy, Malla Rama Krishna, Garalapati Ramareddy, Prusti Saroj, Venkata Chandra Sekher Srinivasarao Bandaru
Asian Pacific Journal of Tropical Disease.2014; 4: S666. CrossRef
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Brief Report

Epidemiological Characteristics of Scrub Typhus in Korea, 2009: Sunja Kim, Jin Seok Kim, Hagyung Lee; Osong Public Health Res Perspect. 2010;1(1):55-60. Published online December 31, 2010; DOI: https://doi.org/10.1016/j.phrp.2010.12.012

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Abstract PDF

Objectives
Currently, the incidence of scrub typhus has increased in urban areas. In this study, we described the epidemiological characteristics of scrub typhus cases reported in the urban areas of Korea in 2009.
Methods
We analysed the case investigation reports of scrub typhus cases that were collected in Korea in 2009. Specially, the different risk factors such as fieldwork and outdoor activity were compared to urban and rural areas, and six urban cities. Statistical analysis was performed using χ² test.
Results
A total of 4,461 cases (including 1,663 suspected cases) were analysed in this study. Among these, the case reports of 4,254 cases had complete addresses. The cases with outdoor activities were 720 (85.2%) in urban areas. In Daegu and Daejeon, the number of cases participated in outdoor activities was 32 (34.4%) and 23 (31.5%), respectively. In other urban areas, cases with outdoor activities were more than 85%.
Conclusion
The most common infection risk factor was outdoor activity in urban areas. However, the proportion and distribution of outdoor activities were different in urban areas. These results will be used to establish strategies for effective prevention and management in urban areas.

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