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Scrub typhus

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https://www.readbyqxmd.com/read/28298367/incidence-risk-factors-and-clinical-outcomes-of-acute-kidney-injury-associated-with-scrub-typhus-a-retrospective-study-of-510-consecutive-patients-in-south-korea-2001-2013
#1
Kyungo Hwang, Ha Nee Jang, Tae Won Lee, Hyun Seop Cho, Eunjin Bae, Se-Ho Chang, Dong Jun Park
OBJECTIVES: Renal involvement in scrub typhus ranges from simple urinary abnormalities to acute kidney injury (AKI) leading to death. This study evaluated the incidence, predictors and prognosis of AKI associated with scrub typhus according to the RIFLE (risk, injury, failure, loss, end-stage kidney disease) criteria. METHODS: We retrospectively evaluated the medical records of patients diagnosed with scrub typhus from January 2001 to November 2013 in Gyeongsang National University Hospital...
March 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28291501/lateral-flow-rapid-test-for-accurate-and-early-diagnosis-of-scrub-typhus-a-febrile-illness-of-historically-military-importance-in-the-pacific-rim
#2
Chien-Chung Chao, Zhiwen Zhangm, Giulia Weissenberger, Hua-Wei Chen, Wei-Mei Ching
Scrub typhus (ST) is an infection caused by Orientia tsutsugamushi. Historically, ST was ranked as the second most important arthropod-borne medical problem only behind malaria during World War II and the Vietnam War. The disease occurs mainly in Southeast Asia and has been shown to emerge and reemerge in new areas, implying the increased risk for U.S. military and civilian personnel deployed to these regions. ST can effectively be treated by doxycycline provided the diagnosis is made early, before the development of severe complications...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28282373/murine-models-of-scrub-typhus-associated-with-host-control-of-orientia-tsutsugamushi-infection
#3
Nicole L Mendell, Donald H Bouyer, David H Walker
BACKGROUND: Scrub typhus, a febrile illness of substantial incidence and mortality, is caused by infection with the obligately intracellular bacterium Orientia tsutsugamushi. It is estimated that there are more than one million cases annually transmitted by the parasitic larval stage of trombiculid mites in the Asia-Pacific region. The antigenic and genetic diversity of the multiple strains of O. tsutsugamushi hinders the advancement of laboratory diagnosis, development of long-lasting vaccine-induced protection, and interpretation of clinical infection...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28273989/healthcare-associated-infections-in-a-resource-limited-setting
#4
Chanaveerappa Bammigatti, Saikumar Doradla, Harish Narasimha Belgode, Harichandra Kumar, Rathinam Palamalai Swaminathan
INTRODUCTION: Health Care associated Infections (HAI) are the most common complications affecting the hospitalized patients. HAI are more common in developing and under developed countries. However, there are no systematic surveillance programs in these countries. AIM: To find out the burden, predisposing factors and multidrug resistant organisms causing HAI in a resource limited setting. MATERIALS AND METHODS: This prospective observational study was done at Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER)...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28273079/climate-variability-animal-reservoir-and-transmission-of-scrub-typhus-in-southern-china
#5
Yuehong Wei, Yong Huang, Xiaoning Li, Yu Ma, Xia Tao, Xinwei Wu, Zhicong Yang
OBJECTIVES: We aimed to evaluate the relationships between climate variability, animal reservoirs and scrub typhus incidence in Southern China. METHODS: We obtained data on scrub typhus cases in Guangzhou every month from 2006 to 2014 from the Chinese communicable disease network. Time-series Poisson regression models and distributed lag nonlinear models (DLNM) were used to evaluate the relationship between risk factors and scrub typhus. RESULTS: Wavelet analysis found the incidence of scrub typhus cycled with a period of approximately 8-12 months and long-term trends with a period of approximately 24-36 months...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28260341/-study-of-epidemic-area-on-tsutsugamushi-disease-in-taizhou-from-2013-to-2014
#6
Y L He, H Y Yang, C X Yu, X Zhang, Q H Yi, Z L Ma, J Cha, X B Xu, Q Zhang, W J Dai, W J Qian, J Yin, S J Zhu, Z Xu
Objective: To study the epidemiological characteristics of tsutsugamushi disease, and to confirm the existence of the disease's epidemic foci in Taizhou. Methods: From 2013 to 2014, Dongxing town hospital and Xingqiao town hospital were selected as specimen collection sites in Jingjiang city. Blood samples (5 ml) were collected from 40 patients with acute tsutsugamushi disease. A total of 59 rodents were captured with cage night method in the survey sites at 5, 7, 9, 10, and 11 months in 2013, from which, the spleen, liver, and kidney specimens were selected...
March 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28256470/molecular-characterization-of-orientia-tsutsugamushi-serotypes-causing-scrub-typhus-outbreak-in-southern-region-of-andhra-pradesh-india
#7
K Usha, E Kumar, Usha Kalawat, B Siddhartha Kumar, A Chaudhury, D V R Sai Gopal
BACKGROUND & OBJECTIVES: Scrub typhus is a vector-borne zoonotic infection caused by Orientiatsutsugamushi. Local epidemiology of the circulating serotypes of scrub typhus is not available from most parts of India. We conducted this study for the diagnosis of scrub typhus using IgM ELISA and to detect O. tsutsugamushi serotypes circulating in southern Andhra Pradesh, India. METHODS: Samples were collected from patients clinically suspected to have scrub typhus and were subjected to IgM ELISA to measure IgM antibodies against O...
October 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28250620/clinical-score-to-differentiate-scrub-typhus-and-dengue-a-tool-to-differentiate-scrub-typhus-and-dengue
#8
Shubhanker Mitra, Ira Gautam, Mohan Jambugulam, Kundavaram Paul Prabhakar Abhilash, Vishalakshi Jayaseeelan
BACKGROUND: Dengue and scrub typhus share similar clinical and epidemiological features, and are difficult to differentiate at initial presentation. Many places are endemic to both these infections where they comprise the majority of acute undifferentiated febrile illnesses. MATERIALS AND METHODS: We aimed to develop a score that can differentiate scrub typhus from dengue. In this cross-sectional study, 188 cases of scrub typhus and 201 cases of dengue infection who presented to the emergency department or medicine outpatient clinic from September 2012 to April 2013 were included...
January 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/28248956/diversification-of-orientia-tsutsugamushi-genotypes-by-intragenic-recombination-and-their-potential-expansion-in-endemic-areas
#9
Gwanghun Kim, Na-Young Ha, Chan-Ki Min, Hong-Il Kim, Nguyen Thi Hai Yen, Keun-Hwa Lee, Inbo Oh, Jae-Seung Kang, Myung-Sik Choi, Ik-Sang Kim, Nam-Hyuk Cho
BACKGROUND: Scrub typhus is a mite-borne febrile disease caused by O. tsutsugamushi infection. Recently, emergence of scrub typhus has attracted considerable attention in several endemic countries in Asia and the western Pacific. In addition, the antigenic diversity of the intracellular pathogen has been a serious obstacle for developing effective diagnostics and vaccine. METHODOLOGY/PRINCIPAL FINDINGS: To understand the evolutionary pathway of genotypic diversification of O...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28241043/use-of-eschar-swabbing-for-the-molecular-diagnosis-and-genotyping-of-orientia-tsutsugamushi-causing-scrub-typhus-in-quang-nam-province-vietnam
#10
Nhiem Le Viet, Maureen Laroche, Hoa L Thi Pham, Nho L Viet, Oleg Mediannikov, Didier Raoult, Philippe Parola
BACKGROUND: Scrub typhus is a rickettsiosis which is caused by Orientia tsutsugamushi and occurs throughout the Asia-Pacific region. Molecular diagnosis of rickettsioses using eschar swabs has recently emerged, and may be very useful for the diagnosis of these diseases in tropical settings. METHODOLOGY/PRINCIPAL FINDINGS: Quantitative polymerase chain reaction (qPCR) was used to detect O. tsutsugamushi DNA in whole blood and eschar swab specimens of 67 patients who were clinically suspected of scrub typhus in Quang Nam province, Vietnam...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28239760/incidence-and-outcome-of-acute-cardiorenal-syndrome-in-hospitalized-children
#11
Vivek Athwani, Maneesha Bhargava, Rahul Chanchlani, Amar Jeet Mehta
OBJECTIVES: To determine the incidence, etiology and outcome of Cardiorenal syndrome (CRS) in hospitalized children. METHODS: A prospective cohort study was carried out in 242 children between 6 mo to 18 y of age hospitalized with primary cardiac, renal or any systemic disorder at a tertiary care center in India. The primary outcome was the development of CRS. Univariate and multivariate logistic regression analysis were performed to determine the risk of mortality secondary to CRS...
February 27, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28226202/predictors-of-acute-myocarditis-in-complicated-scrub-typhus-an-endemic-province-in-the-republic-of-korea
#12
Jung Yeon Chin, Ki-Woon Kang, Kyung Min Moon, Jongwoo Kim, Yu Jeong Choi
Background/Aims: Scrub typhus is known as a self-limited infectious disease. Cardiac complication is uncommon and usually not life-threatening. Until now, few cases of fulminant myocarditis by scrub typhus have been reported. So, we investigated incidence and predictors of acute myocarditis in severe scrub typhus. Methods: We retrospectively reviewed 89 patients among 91 scrub typhus confirmed patients who examined an echocardiogram and cardiac biomarkers from 2005 to 2015 in the intensive care unit at our hospital...
February 23, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28202789/use-of-multiplex-real-time-pcr-to-diagnose-scrub-typhus
#13
Wiwit Tantibhedhyangkul, Ekkarat Wongsawat, Saowaluk Silpasakorn, Duangdao Waywa, Nuttawut Saenyasiri, Jintapa Suesuay, Wilawan Thipmontree, Yupin Suputtamongkol
Scrub typhus, caused by Orientia tsutsugamushi, is a common cause of acute undifferentiated febrile illness in the Asia--Pacific region. However, its non-specific clinical manifestation often prevents early diagnosis. We propose the use of PCR and serologic tests as diagnostic tools. Here, we developed a multiplex real-time PCR assay using hydrolysis (Taqman) probes targeting O. tsutsugamushi47-kDa, groEL, and human IFNB genes to improve early diagnosis of scrub typhus. The amplification efficiency was higher than 94%, and the lower detection limit was 10 copies per reaction...
February 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28195095/molecular-detection-of-orientia-tsutsugamushi-from-suspected-scrub-typhus-cases
#14
COMPARATIVE STUDY
Seethalakshmi Srinivasan, Thangam Menon
CONTEXT: Scrub typhus is an acute febrile illness caused by Orientia tsutsugamushi. The disease is under-diagnosed in India, because of low index of suspicion and also due to its nonspecific presentation, and lack of confirmatory diagnostic tests. AIMS: This study was undertaken to diagnose scrub typhus in patients with undifferentiated fevers by serology and molecular methods. MATERIALS AND METHODS: A total of 68 blood samples were collected from patients clinically suspected to have scrub typhus...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28193163/prevalence-and-clinical-presentation-of-rickettsia-coxiella-leptospira-bartonella-and-chikungunya-virus-infections-among-hospital-based-febrile-patients-from-december-2008-to-november-2009-in-bangladesh
#15
Labib Imran Faruque, Rashid Uz Zaman, Emily S Gurley, Robert F Massung, A S M Alamgir, Renee L Galloway, Ann M Powers, Ying Bai, Michael Kosoy, William L Nicholson, Mahmudur Rahman, Stephen P Luby
BACKGROUND: We conducted a study to identify Rickettsia, Coxiella, Leptospira, Bartonella, and Chikungunya virus infections among febrile patients presenting at hospitals in Bangladesh. METHODS: We collected blood samples from patients at six tertiary hospitals from December 2008 to November 2009 and performed laboratory tests at the United States Centers for Disease Control and Prevention (CDC). RESULTS: Out of 720 enrolled patients, 263 (37%) were infected with Rickettsia; 132 patients had immunofluorescence antibody titer >64 against spotted fever, 63 patients against scrub typhus fever and 10 patients against typhus fever...
February 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28173608/prevalence-and-risk-factors-for-scrub-typhus-in-south-india
#16
Paul Trowbridge, Divya P, Prasanna S Premkumar, George M Varghese
OBJECTIVE: To determine the prevalence and risk factors of scrub typhus in Tamil Nadu, South India. METHODS: We performed a clustered seroprevalence study of the areas around Vellore. All participants completed a risk factor survey, with seropositive and seronegative participants acting as cases and controls, respectively, in a risk factor analysis. After univariate analysis, variables found to be significant underwent multivariate analysis. RESULTS: Of 721 people participating in this study, 31...
February 7, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28149037/acute-respiratory-failure-in-scrub-typhus-patients
#17
Pradeep Marur Venkategowda, S Manimala Rao
No abstract text is available yet for this article.
December 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28144059/epidemiological-profile-of-acute-respiratory-distress-syndrome-patients-a-tertiary-care-experience
#18
Rahul Magazine, Shobitha Rao, Bharti Chogtu, Ramkumar Venkateswaran, Hameed Aboobackar Shahul, Umesh Goneppanavar
BACKGROUND: Acute respiratory distress syndrome (ARDS) is seen in critically ill patients. Its etiological spectrum in India is expected to be different from that seen in western countries due to the high prevalence of tropical infections. AIM: To study the epidemiological profile of ARDS patients. SETTING: A tertiary care hospital in Karnataka, India. MATERIALS AND METHODS: Retrospective analysis of 150 out of the 169 ARDS patients diagnosed during 2010-2012...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28122687/retrospective-survey-of-severe-fever-with-thrombocytopenia-syndrome-in-patients-with-suspected-rickettsiosis-in-japan
#19
Masaaki Satoh, Shintaro Akashi, Motohiko Ogawa, Takatoshi Wakeyama, Hiroshi Ogawa, Aiko Fukuma, Satoshi Taniguchi, Hideki Tani, Takeshi Kurosu, Shuetsu Fukushi, Masayuki Shimojima, Shuji Ando, Masayuki Saijo
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne infectious disease caused by the SFTS virus (SFTSV). The aim of this study was to clarify whether SFTS is potentially mis-diagnosed as rickettsioses, including spotted fever, typhus fever, and scrub typhus, which are also tick-borne disease. A total of 464 serum samples collected from 222 patients with clinically suspected rickettsiosis between 1999 and 2012 were tested for antibodies against the SFTSV. Of the 464 serum samples, one was positive for antibodies against the virus in an enzyme-linked immunosorbent assay and indirect immunofluorescence assay...
January 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28115665/successfully-managed-acute-transverse-myelitis-related-to-scrub-typhus-and-serial-image-findings
#20
Jae Sung Yun, Ji Soo Song, Eun Jung Choi, Jeong-Hwan Hwang, Chang-Seop Lee, Eun Hae Park
Central nervous system involvement manifesting as meningitis or meningoencephalitis is a known complication of scrub typhus, but very few spinal cord lesions such as acute transverse myelitis (ATM) have been reported in association with this disease. Scrub typhus patients with a spinal lesion present with neurologic symptoms including dysuria, motor, and sensory weakness. Herein, we describe a rare case of ATM associated with scrub typhus. Clinical characteristics, cerebrospinal fluid cytology, Orientia tsutsugamushi serum antibody titer, and serial magnetic resonance imaging scans resulted in a diagnosis of ATM associated with scrub typhus...
January 23, 2017: American Journal of Tropical Medicine and Hygiene
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