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Tropical fever

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https://www.readbyqxmd.com/read/27905890/low-and-declining-attack-rates-of-imported-typhoid-fever-in-the-netherlands-1997-2014-in-spite-of-a-restricted-vaccination-policy
#1
F S T Suryapranata, M Prins, G J B Sonder
BACKGROUND: Typhoid fever mainly occurs in (sub) tropical regions where sanitary conditions remain poor. In other regions it occurs mainly among returning travelers or their direct contacts. The aim of this study was to evaluate the current Dutch guidelines for typhoid vaccination. METHOD: Crude annual attack rates (AR) per 100,000 Dutch travelers were calculated during the period 1997 to 2014 by dividing the number of typhoid fever cases by the estimated total number of travelers to a specific country or region...
December 1, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27893080/travel-associated-zika-virus-disease-acquired-in-the-americas-through-february-2016-a-geosentinel-analysis
#2
Davidson H Hamer, Kira A Barbre, Lin H Chen, Martin P Grobusch, Patricia Schlagenhauf, Abraham Goorhuis, Perry J J van Genderen, Israel Molina, Hilmir Asgeirsson, Phyllis E Kozarsky, Eric Caumes, Stefan H Hagmann, Frank P Mockenhaupt, Gilles Eperon, Elizabeth D Barnett, Emmanuel Bottieau, Andrea K Boggild, Philippe Gautret, Noreen A Hynes, Susan Kuhn, R Ryan Lash, Karin Leder, Michael Libman, Denis J M Malvy, Cecilia Perret, Camilla Rothe, Eli Schwartz, Annelies Wilder-Smith, Martin S Cetron, Douglas H Esposito
Background: Zika virus has spread rapidly in the Americas and has been imported into many nonendemic countries by travelers. Objective: To describe clinical manifestations and epidemiology of Zika virus disease in travelers exposed in the Americas. Design: Descriptive, using GeoSentinel records. Setting: 63 travel and tropical medicine clinics in 30 countries. Patients: Ill returned travelers with a confirmed, probable, or clinically suspected diagnosis of Zika virus disease seen between January 2013 and 29 February 2016...
November 22, 2016: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27890811/enteric-fever-in-barcelona-changing-patterns-of-importation-and-antibiotic-resistance
#3
Ana Requena-Méndez, Monica Berrocal, Manuel Almela, Alex Soriano, Joaquim Gascón, José Muñoz
BACKGROUND: Enteric fever's incidence is decreasing among residents of high-income countries, although it's rising in travelers coming from low-resource endemic settings. The study's aim is to describe epidemiological, clinical and laboratory features of patients with enteric fever. METHODS: Retrospective descriptive study of enteric fever cases diagnosed at a Tropical Medicine Unit in Barcelona, 1993-2012. RESULTS: Out of 40 patients, 31(77,5%) were returning travelers, and 70% of them had been in Southern Asia...
November 24, 2016: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/27889244/medicinal-uses-chemistry-and-pharmacology-of-dillenia-species-dilleniaceae
#4
REVIEW
Carla W Sabandar, Juriyati Jalil, Norizan Ahmat, Nor-Ashila Aladdin
The genus Dillenia is comprised of about 100 species of evergreen and deciduous trees or shrubs of disjunct distribution in the seasonal tropics of Madagascar through South and South East Asia, Malaysia, North Australia, and Fiji. Species from this genus have been widely used in medicinal folklore to treat cancers, wounds, jaundice, fever, cough, diabetes mellitus, and diarrhea as well as hair tonics. The plants of the genus also produce edible fruits and are cultivated as ornamental plants. Flavonoids, triterpenoids, and miscellaneous compounds have been identified in the genus...
November 23, 2016: Phytochemistry
https://www.readbyqxmd.com/read/27876005/a-predictive-model-to-differentiate-dengue-from-other-febrile-illness
#5
Eduardo Fernández, Marek Smieja, Stephen D Walter, Mark Loeb
BACKGROUND: Dengue is a major public health problem in tropical and subtropical countries and has a presentation similar to other febrile illnesses. Since laboratory confirmation is frequently delayed, the majority of dengue cases are diagnosed based on symptoms. The objective of this study was to identify clinical, hematological and demographical parameters that could be used as predictors of dengue fever among patients with febrile illness. METHODS: We conducted a retrospective cohort study of 548 patients presenting with febrile syndrome to the largest public hospitals in Honduras...
November 22, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27843231/anterior-ischemic-optic-neuropathy-following-dengue-fever
#6
Reshma Ramakrishnan, Saurabh Shrivastava, Shrikant Deshpande, Priyanka Patkar
Dengue fever is caused by a flavivirus. This infection is endemic in the tropics and warm temperate regions of the world. Ocular manifestations of dengue fever include subconjunctival, vitreous, and retinal haemorrhages; posterior uveitis; optic neuritis; and maculopathies, haemorrhage, and oedema. However anterior ischemic optic neuropathy is a rare presentation. Optic nerve ischemia most frequently occurs at the optic nerve head, where structural crowding of nerve fibers and reduction of the vascular supply may combine to impair perfusion to a critical degree and produce optic disc oedema...
September 2016: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/27834337/a-novel-indirect-elisa-for-diagnosis-of-dengue-fever
#7
Rohan Narayan, Senthil Raja, Senthil Kumar, Mohana Sambasivam, Raja Jagadeesan, Kavita Arunagiri, Kaveri Krishnasamy, Gunasekaran Palani
BACKGROUND & OBJECTIVES: Dengue fever (DF) is associated with significant morbidity and mortality in the tropical and sub-tropical regions of the world. Since there are no effective antiviral drugs for treatment, clinicians often rely on the accurate diagnosis of dengue fever to begin supportive therapy at early stages of the illness. The objective of this study was to develop an in-house dengue virus serotype 2 (DENV-2) non-structural protein- 5 (NS5) based indirect ELISA. METHODS: DENV-2 was raised in Vero cells and the viral proteins were separated and subsequently the NS5 protein was eluted...
July 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27832191/dengue-virus-infection-is-through-a-cooperative-interaction-between-a-mannose-receptor-and-clec5a-on-macrophage-as-a-multivalent-hetero-complex
#8
Yen-Lung Lo, Gunn-Guang Liou, Jia-Huei Lyu, Michael Hsiao, Tsui-Ling Hsu, Chi-Huey Wong
Dengue fever is a mosquito-borne viral pandemic disease that is widespread in the tropical and subtropical areas. Dengue virus uses human mannose-binding receptor (MR) and DC-SIGN on macrophages as primary receptors, and CLEC5A as signaling receptor to sense the dengue virus invasion and then to signal and stimulate macrophages to secrete cytokines. But the interplay between MR/DC-SIGN and CLEC5A is unknown. Here we demonstrate a plausible mechanism for the interaction, i.e. MR/DC-SIGN first attracts the virus with high avidity, and the virus concurrently interacts with CLEC5A in close proximity to form a multivalent hetero-complex and facilitate CLEC5A-mediated signal transduction...
2016: PloS One
https://www.readbyqxmd.com/read/27826886/rarity-of-mixed-species-malaria-with-plasmodium-falciparum-and-plasmodium-malariae-in-travelers-to-saarland-in-germany
#9
Josef Yayan, Kurt Rasche
Malaria is an acute, life-threatening infectious disease that spreads in tropical and subtropical regions. Malaria is mainly brought over to Germany by travelers, so the disease can be overlooked due to its nonspecific symptoms and a lack of experience of attending physicians. The aim of this study was to analyze, retrospectively, epidemiological and clinical data from patients examined for malaria. Patient data were collected from hospital charts at the Department of Internal Medicine, Saarland University Medical Center, Germany, for the period of 2004-2012...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27826348/complete-heart-block-in-association-with-dengue-hemorrhagic-fever
#10
Hafeez Ul Hassan Virk, Faisal Inayat, Zia Ur Rahman
Dengue virus infection affects the heart structurally and functionally. Clinical manifestations of cardiac complications secondary to dengue virus infection vary from self-limiting arrhythmias to severe myocardial infarction, leading to hypotension, pulmonary edema, and cardiogenic shock. However, we report a case of dengue hemorrhagic fever (DHF) complicated by a complete heart block. A female with DHF due to dengue virus serotype 2, presented to the emergency department with fever, headache, rash, and fatigue followed by an episode of syncope...
November 2016: Korean Circulation Journal
https://www.readbyqxmd.com/read/27820821/a-cluster-randomized-controlled-trial-to-reduce-diarrheal-disease-and-dengue-entomological-risk-factors-in-rural-primary-schools-in-colombia
#11
Hans J Overgaard, Neal Alexander, Maria Ines Matiz, Juan Felipe Jaramillo, Victor Alberto Olano, Sandra Vargas, Diana Sarmiento, Audrey Lenhart, Thor Axel Stenström
BACKGROUND: As many neglected tropical diseases are co-endemic and have common risk factors, integrated control can efficiently reduce disease burden and relieve resource-strained public health budgets. Diarrheal diseases and dengue fever are major global health problems sharing common risk factors in water storage containers. Where provision of clean water is inadequate, water storage is crucial. Fecal contamination of stored water is a common source of diarrheal illness, but stored water also provides breeding sites for dengue vector mosquitoes...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27814732/detection-of-dengue-virus-serotypes-1-2-and-3-in-selected-regions-of-kenya-2011-2014
#12
Limbaso Konongoi, Victor Ofula, Albert Nyunja, Samuel Owaka, Hellen Koka, Albina Makio, Edith Koskei, Fredrick Eyase, Daniel Langat, Randal J Schoepp, Cynthia Ann Rossi, Ian Njeru, Rodney Coldren, Rosemary Sang
BACKGROUND: Dengue fever, a mosquito-borne disease, is associated with illness of varying severity in countries in the tropics and sub tropics. Dengue cases continue to be detected more frequently and its geographic range continues to expand. We report the largest documented laboratory confirmed circulation of dengue virus in parts of Kenya since 1982. METHODS: From September 2011 to December 2014, 868 samples from febrile patients were received from hospitals in Nairobi, northern and coastal Kenya...
November 4, 2016: Virology Journal
https://www.readbyqxmd.com/read/27812857/epidemiological-and-etiological-investigation-of-dengue-fever-in-the-fujian-province-of-china-during-2004-2014
#13
Jinzhang Wang, Hongbing Chen, Meng Huang, Yongjun Zhang, Jianfeng Xie, Yansheng Yan, Kuicheng Zheng, Yuwei Weng
Dengue fever (DF) is a vector-borne disease and a tremendous socioeconomic burden on tropical and subtropical countries worldwide. To explore the characteristics of DF epidemic in the Fujian province, information of DF cases in Fujian during 2004-2014 was collected and analyzed. The complete E genes of 48 viral isolates were amplified and sequenced for phylogenetic analysis. A total of 733 cases was reported, of which 612 (83.5%) occurred during the peak period from August to October. Additionally, 76% (190/250) of imported cases originated from Southeast Asia countries, by the epidemiological investigation...
October 31, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27812090/diagnosis-of-persistent-fever-in-the-tropics-set-of-standard-operating-procedures-used-in-the-nidiag-febrile-syndrome-study
#14
Emilie Alirol, Ninon Seiko Horie, Barbara Barbé, Veerle Lejon, Kristien Verdonck, Philippe Gillet, Jan Jacobs, Philippe Büscher, Basudha Kanal, Narayan Raj Bhattarai, Sayda El Safi, Thong Phe, Kruy Lim, Long Leng, Pascal Lutumba, Deby Mukendi, Emmanuel Bottieau, Marleen Boelaert, Suman Rijal, François Chappuis
In resource-limited settings, the scarcity of skilled personnel and adequate laboratory facilities makes the differential diagnosis of fevers complex [1-5]. Febrile illnesses are diagnosed clinically in most rural centers, and both Rapid Diagnostic Tests (RDTs) and clinical algorithms can be valuable aids to health workers and facilitate therapeutic decisions [6,7]. The persistent fever syndrome targeted by NIDIAG is defined as presence of fever for at least one week. The NIDIAG clinical research consortium focused on potentially severe and treatable infections and therefore targeted the following conditions as differential diagnosis of persistent fever: visceral leishmaniasis (VL), human African trypanosomiasis (HAT), enteric (typhoid and paratyphoid) fever, brucellosis, melioidosis, leptospirosis, malaria, tuberculosis, amoebic liver abscess, relapsing fever, HIV/AIDS, rickettsiosis, and other infectious diseases (e...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27807296/guillain-barr%C3%A3-syndrome-associated-with-zika-virus-infection-in-a-traveler-returning-from-guyana
#15
Ryan G Fabrizius, Kathryn Anderson, Brett Hendel-Paterson, Robyn M Kaiser, Salahudin Maalim, Patricia F Walker
Zika virus (ZIKV) is a mosquito-borne flavivirus with a significant public health impact highlighted by the ongoing epidemic in the Americas. We describe a 44-year-old male presenting to our tropical medicine center with complaints of fever, headache, joint pain, and rash after recent travel to Guyana. The patient subsequently developed gait imbalance and lower extremity weakness with clinical examination, cerebrospinal fluid studies, and magnetic resonance imaging of the spine consistent with a diagnosis of Guillain-Barré syndrome (GBS)...
November 2, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27801368/antimicrobial-resistance-in-patients-with-urinary-tract-infections-and-the-impact-on-empiric-therapy-in-serbia
#16
Simon Zec, Aleksa Despotovic, Aleksandra Spurnic-Radovanovic, Ivana Milosevic, Milica Jovanovic, Mijomir Pelemis, Goran Stevanovic
INTRODUCTION: Surveillance of antimicrobial resistance is essential in establishing treatment guidelines for urinary tract infections. The aim of this pilot study was to analyse resistance rates of pathogens, across different demographics and determine whether adjustments in empiric therapy should be considered for different age and gender groups. METHODOLOGY: A 5-year retrospective study included 256 patients hospitalised, under the initial diagnosis of Fever of Unknown Origin who were then subsequently diagnosed with a urinary tract infection at the Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia...
October 31, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/27796940/etiology-clinical-profile-and-outcome-of-liver-disease-in-pregnancy-with-predictors-of-maternal-mortality-a-prospective-study-from-western-india
#17
Dattatray Solanke, Chetan Rathi, Vikas Pandey, Mallanagoud Patil, Aniruddha Phadke, Prabha Sawant
BACKGROUND: The aim of this study is to study the etiology, clinical profile, and prognostic factors related to maternal and fetal health in pregnant patients with liver disease in Western India. METHODS: This study included 103 consecutive pregnant patients with liver dysfunction from August 2013 to July 2015, who underwent regular biochemical tests, viral markers, ultrasound of abdomen, etc. and were followed up for 6 weeks postpartum or until death. RESULTS: Pregnancy-specific causes of liver dysfunction were found in 39 % (40/103) patients...
October 31, 2016: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/27787215/detection-of-theileria-lestoquardi-cross-infection-in-cattle-with-clinical-theileriosis-in-iran
#18
Seyedeh Missagh Jalali, Abbas Jolodar, Aria Rasooli, Ameneh Darabifard
Theileriosis caused by Theileria lestoquardi (malignant ovine theileriosis) in sheep and Theileria annulata (tropical theileriosis) in cattle is an important hemoprotozoal tick-borne disease in Iran. Due to major biologic and phylogenic similarities of these two species, this study was carried out to investigate the occurrence of natural infections with T.lestoquardi and T.annulata in cattle with clinical theileriosis in Ahvaz, southwest Iran. Fifty one cattle were selected based on clinical signs of theileriosis and confirmation by microscopic examination of blood smears...
December 1, 2016: Acta Parasitologica
https://www.readbyqxmd.com/read/27761646/-viral-arthritis-and-vasculitis
#19
U Sixdorf, E Märker-Hermann
Viral arthritis and vasculitis are important differential diagnoses primarily in patients with acute polyarticular arthritis in association with fever and rash, in populations specially at risk and in returning travellers. Parvovirus B19 is the most frequent cause of viral arthritis in Europe, whereas rubella, hepatitis B and C viruses have become less common. Due to worldwide tourism arthritogenic alphaviruses, which are transmitted by mosquito vectors have come into the focus of tropical medicine and rheumatology...
October 19, 2016: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/27743683/initial-experience-with-imported-zika-virus-infection-in-spain
#20
Marta Díaz-Menéndez, Fernando de la Calle-Prieto, Dolores Montero, Eugenia Antolín, Ana Vazquez, Marta Arsuaga, Elena Trigo, Silvia García-Bujalance, María de la Calle, Paz Sánchez Seco, Fernando de Ory, Jose Ramón Arribas
INTRODUCTION: A considerable increase of imported Zika virus (ZIKV) infection has been reported in Europe in the last year. This is the result of the large outbreak of the disease in the Americas, along with the increase in the numbers of travellers and immigrants arriving from ZIKV endemic areas. METHODS: A descriptive study was conducted in the Tropical Medicine Unit of Hospital La Paz-Carlos III in Madrid on travellers returning from an endemic area for ZIKV from January to April 2016...
October 12, 2016: Enfermedades Infecciosas y Microbiología Clínica
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