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Tropical infectious disease

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https://www.readbyqxmd.com/read/28286767/emerging-and-neglected-infectious-diseases-insights-advances-and-challenges
#1
REVIEW
Nicholas Israel Nii-Trebi
Infectious diseases are a significant burden on public health and economic stability of societies all over the world. They have for centuries been among the leading causes of death and disability and presented growing challenges to health security and human progress. The threat posed by infectious diseases is further deepened by the continued emergence of new, unrecognized, and old infectious disease epidemics of global impact. Over the past three and half decades at least 30 new infectious agents affecting humans have emerged, most of which are zoonotic and their origins have been shown to correlate significantly with socioeconomic, environmental, and ecological factors...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28283015/-cutaneous-larva-migrans-in-turkey-an-imported-case-report
#2
Meliha Çağla Sönmezer, Şebnem Erdinç, Necla Tülek, Cahit Babür, Ayşe Büyükdemirci, Tuba İlgar, Günay Ertem
Cutaneous larva migrans (CLM) is a parasitic infection most commonly found in tropical and subtropical areas. However, with the ease and increase of foreign travel to many countries around the world, the infection is not limited to these areas. CLM is an erythematous, serpiginous infection with skin eruption caused by percutaneous penetration of the larvae to the skin. In this report, a case diagnosed as imported CLM after an Amazon trip and treated with albendazole was presented. A 36 year-old male patient admitted to infectious diseases clinic with intense itching, erythematous, raised, streaklike serpiginious eruptionand some redness at bilateral foot especially at the right foot for about one week...
January 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28277549/the-final-oral-ebola-vaccine-trial-on-captive-chimpanzees
#3
Peter D Walsh, Drishya Kurup, Dana L Hasselschwert, Christoph Wirblich, Jason E Goetzmann, Matthias J Schnell
Could new oral vaccine technologies protect endangered wildlife against a rising tide of infectious disease? We used captive chimpanzees to test oral delivery of a rabies virus (RABV) vectored vaccine against Ebola virus (EBOV), a major threat to wild chimpanzees and gorillas. EBOV GP and RABV GP-specific antibody titers increased exponentially during the trial, with rates of increase for six orally vaccinated chimpanzees very similar to four intramuscularly vaccinated controls. Chimpanzee sera also showed robust neutralizing activity against RABV and pseudo-typed EBOV...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28260567/between-securitisation-and-neglect-managing-ebola-at-the-borders-of-global-health
#4
Mark Honigsbaum
In 2014 the World Health Organization (WHO) was widely criticised for failing to anticipate that an outbreak of Ebola in a remote forested region of south-eastern Guinea would trigger a public health emergency of international concern (pheic). In explaining the WHO's failure, critics have pointed to structural restraints on the United Nations organisation and a leadership 'vacuum' in Geneva, among other factors. This paper takes a different approach. Drawing on internal WHO documents and interviews with key actors in the epidemic response, I argue that the WHO's failure is better understood as a consequence of Ebola's shifting medical identity and of triage systems for managing emerging infectious disease (EID) risks...
April 2017: Medical History
https://www.readbyqxmd.com/read/28259548/seroprevalence-of-five-neglected-parasitic-diseases-among-immigrants-accessing-five-infectious-and-tropical-diseases-units-in-italy-a-cross-sectional-study
#5
Giulia Martelli, Chiara Di Girolamo, Lorenzo Zammarchi, Andrea Angheben, Matteo Morandi, Stefano Tais, Monica Degani, Issa El Hamad, Silvio Caligaris, Anna Ciannameo, Elisabetta Grilli, Lucia Urbinati, Geraldo Badona Monteiro, Carmelo Scarcella, Nicola Petrosillo, Margherita Digaetano, Lorenzo Rabbi, Noemi Bazzanini, Francesca Cacciatore, Brigida Lilia Marta, Maria Luisa Moro, Alessandro Bartoloni, Pierluigi Viale, Gabriella Verucchi
OBJECTIVE: This multicentre cross-sectional study aims to estimate the prevalence of five neglected tropical diseases (Chagas disease, filariasis, schistosomiasis, strongyloidiasis, toxocariasis) among immigrants accessing health care facilities in five Italian cities (Bologna, Brescia, Florence, Rome, Verona). METHODS: Individuals underwent a different set of serological tests, according to country of origin and presence of eosinophilia. Seropositive patients were treated and further followed up...
March 1, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28258667/leprosy-one-of-the-many-forgotten-tropical-diseases
#6
Zofia Zwolska, Ewa Augustynowicz-Kopeć
Leprosy or Hansen disease is caused by an infection of Mycobacterium leprae. The large number of undetected cases (2000-2012 years 4 mln people) remains a threat to the elimination of leprosy. Leprosy is an unheard in Poland and generally is considered a condition so "exotic" that it is not worth to spend more attention to it. Forgotten disease in developed countries still thrives in an environment of poor and uneducated. Regardless of the conclusion that in the 21st century none infectious disease should not be treated as a disease on the designated regions of the world, other than our own, it should be recalled that the M...
February 14, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28253945/-pyogenic-spinal-infections-in-adults-a-5-year-experience-from-a-tertiary-care-centre
#7
O Džupová, R Cihlářová
PURPOSE OF THE STUDY To describe epidemiological and clinical features of pyogenic spinal infections in patients treated at the Department of Infectious, Parasitic and Tropical Diseases of the Hospital Na Bulovce in 2010-2014, and to analyse a predictive significance of selected variables. MATERIAL AND METHODS A single-centre retrospective cohort study carried out from 1.1.2010 to 31.12.2014 enrolled adult patients with septic spondylitis, discitis and facet joint infections. Recorded parameters included: demographics, chronic comorbidities, time to diagnosis, radiological work-up, anatomical level of spinal infection, source of infection, etiological agent, complications, treatment and outcomes...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28224222/immunopathological-characterization-of-human-cutaneous-leishmaniasis-lesions-caused-by-leishmania-viannia-spp-in-amazonian-brazil
#8
Cláudia Maria Castro Gomes, Maria Gloria Teixeira Sousa, Joyce Prieto Bezerra Menezes, Marliane Campos Batista, Ana Carolina Stocco Lima, Walter Belda, Daniel Bradshaw, Monica Elinor Alves Gama, Márcia Dalastra Laurenti, Fernando Tobias Silveira, Carlos Eduardo Pereira Corbett
American cutaneous leishmaniasis (ACL) is a chronic infectious disease caused by different protozoan species of Leishmania, and it is endemic in both tropical and subtropical countries. Using immunohistochemistry, we investigate the density of CD68(+), lysozyme(+), CD1a(+), factor XIIIa(+), CD4(+), CD8(+), CD56(+), interferon (IFN)-γ(+), and inducible NO synthase (iNOS(+)) cells. These cells were analyzed from 22 biopsy samples obtained from the lesions of ACL patients, whose infection was caused by Leishmania (Viannia) spp...
February 21, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28220322/serious-fungal-infections-in-the-philippines
#9
M C R Batac, D Denning
The Philippines is a low middle-income, tropical country in Southeast Asia. Infectious diseases remain the main causes of morbidity, including tuberculosis. AIDS/HIV prevalence is still low at <1%, but is rapidly increasing. Fungal disease surveillance has not been done, and its burden has never been estimated. This becomes more important as the population of immunocompromised patients increases, drawn from patients with AIDS, TB, malignancies, and autoimmune diseases requiring chronic steroid use. Using the methodology of the LIFE program ( www...
February 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28219407/development-of-dirofilaria-immitis-and-dirofilaria-repens-in-aedes-japonicus-and-aedes-geniculatus
#10
Cornelia Silaghi, Relja Beck, Gioia Capelli, Fabrizio Montarsi, Alexander Mathis
BACKGROUND: The mosquito-borne filarial nematodes Dirofilaria immitis and Dirofilaria repens primarily affect dogs but also cats, causing heartworm disease or subcutaneous dirofilariosis, respectively, and both may also cause zoonotic diseases in humans. Several mosquito species have been reported as competent vectors for these nematodes, but no data are available for the invasive mosquito species Aedes japonicus (Theobald, 1901). The objective of this study was to describe the development of both D...
February 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28212398/modelling-the-risk-of-taenia-solium-exposure-from-pork-produced-in-western-kenya
#11
Lian F Thomas, William A de Glanville, Elizabeth A J Cook, Barend M De C Bronsvoort, Ian Handel, Claire N Wamae, Samuel Kariuki, Eric M Fèvre
The tapeworm Taenia solium is the parasite responsible for neurocysticercosis, a neglected tropical disease of public health importance, thought to cause approximately 1/3 of epilepsy cases across endemic regions. The consumption of undercooked infected pork perpetuates the parasite's life-cycle through the establishment of adult tapeworm infections in the community. Reducing the risk associated with pork consumption in the developing world is therefore a public health priority. The aim of this study was to estimate the risk of any one pork meal in western Kenya containing a potentially infective T...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28211266/-non-febrile-syndromes-in-the-traveler-returning-from-tropical-regions-admitted-in-a-monographic-unit
#12
A Anula-Morales, B Martin-Giner, M Hernández-Cabrera, C Carranza-Rodríguez, E Pisos-Álamo, N Jaén-Sánchez, J L Pérez-Arellano
OBJECTIVE: The aim was to analyse those syndromes without fever in travellers who return from tropical regions evaluated at our Department of Infectology and Tropical Medicine. Clarifying these conditions intends to reach earlier diagnoses and, perhaps, to avoid the emergence and spread of imported diseases, as well as to establish appropriate preventive measures. METHODS: An observational descriptive transversal study was performed, selecting those patients who returned from tropical regions without fever (n = 281), amongst all travellers evaluated in our department between 1998 and 2013...
February 17, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28188440/pathology-of-infectious-diseases-what-does-the-future-hold
#13
REVIEW
Paul Hofman, Sebastian Lucas, Grégory Jouvion, Arnault Tauziède-Espariat, Fabrice Chrétien, Gieri Cathomas
The demand for expertise in pathology for the diagnosis of infectious diseases (ID) is continually growing, due to an increase in ID in immunocompromised patients and in the (re)-emergence of common and uncommon diseases, including tropical infections and infections with newly identified microbes. The microbiology laboratory plays a crucial role in diagnosing infections, identifying the responsible infectious agents and establishing sensitivity of pathogens to drug therapy. Pathology, however, is the only way to correlate the presence of an infectious agent with the reaction it evokes at cell and tissue level...
February 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28182664/improving-our-forecasts-for-trachoma-elimination-what-else-do-we-need-to-know
#14
Amy Pinsent, Manoj Gambhir
The World Health Organization (WHO) has targeted trachoma for elimination as a public health concern by 2020. Mathematical modelling is used for a range of infectious diseases to assess the impact of different intervention strategies on the prevalence of infection or disease. Here we evaluate the performance of four different mechanistic mathematical models that could all realistically represent trachoma transmission. We fit the four different mechanistic models of trachoma transmission to cross-sectional age-specific Polymerase Chain Reaction (PCR) and Trachomatous inflammation, follicular (TF) prevalence data...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28176029/summarizing-us-wildlife-trade-with-an-eye-toward-assessing-the-risk-of-infectious-disease-introduction
#15
K M Smith, C Zambrana-Torrelio, A White, M Asmussen, C Machalaba, S Kennedy, K Lopez, T M Wolf, P Daszak, D A Travis, W B Karesh
The aim of this study was to characterize the role of the USA in the global exchange of wildlife and describe high volume trade with an eye toward prioritizing health risk assessment questions for further analysis. Here we summarize nearly 14 years (2000-2013) of the most comprehensive data available (USFWS LEMIS system), involving 11 billion individual specimens and an additional 977 million kilograms of wildlife. The majority of shipments contained mammals (27%), while the majority of specimens imported were shells (57%) and tropical fish (25%)...
February 7, 2017: EcoHealth
https://www.readbyqxmd.com/read/28167862/mycetoma-in-a-non-endemic-area-a-diagnostic-challenge
#16
Boubacar Efared, Layla Tahiri, Marou Soumana Boubacar, Gabrielle Atsam-Ebang, Nawal Hammas, El Fatemi Hinde, Laila Chbani
BACKGROUND: Mycetoma is a chronic granulomatous infectious disease caused by filamentous bacteria or by fungi. The disease is endemic in certain tropical and subtropical areas of the world but can be found elsewhere posing sometimes a diagnostic challenge for clinicians. CASE PRESENTATION: A 65-year- old man presented with a right foot swelling evolving for 25 years. During that time, several diagnosis and treatments have been made without any improvement. The disease spread to bones, and misdiagnosed as Kaposi's sarcoma...
2017: BMC Clinical Pathology
https://www.readbyqxmd.com/read/28146100/echovirus-6-infects-human-exocrine-and-endocrine-pancreatic-cells-and-induces-pro-inflammatory-innate-immune-response
#17
Luis Sarmiento, Gun Frisk, Mahesh Anagandula, Monika Hodik, Ilaria Barchetta, Eitan Netanyah, Eduardo Cabrera-Rode, Corrado M Cilio
Human enteroviruses (HEV), especially coxsackievirus serotype B (CVB) and echovirus (E), have been associated with diseases of both the exocrine and endocrine pancreas, but so far evidence on HEV infection in human pancreas has been reported only in islets and ductal cells. This study aimed to investigate the capability of echovirus strains to infect human exocrine and endocrine pancreatic cells. Infection of explanted human islets and exocrine cells with seven field strains of E6 caused cytopathic effect, virus titer increase and production of HEV protein VP1 in both cell types...
January 30, 2017: Viruses
https://www.readbyqxmd.com/read/28145455/m48u1-and-tenofovir-combination-synergistically-inhibits-hiv-infection-in-activated-pbmcs-and-human-cervicovaginal-histocultures
#18
Giuseppina Musumeci, Isabella Bon, David Lembo, Valeria Cagno, Maria Carla Re, Caterina Signoretto, Erica Diani, Lucia Lopalco, Claudia Pastori, Loïc Martin, Gilles Ponchel, Davide Gibellini, Kawthar Bouchemal
Microbicides are considered a promising strategy for preventing human immunodeficiency virus (HIV-1) transmission and disease. In this report, we first analyzed the antiviral activity of the miniCD4 M48U1 peptide formulated in hydroxyethylcellulose (HEC) hydrogel in activated peripheral blood mononuclear cells (PBMCs) infected with R5- and X4-tropic HIV-1 strains. The results demonstrate that M48U1 prevented infection by several HIV-1 strains including laboratory strains, and HIV-1 subtype B and C strains isolated from the activated PBMCs of patients...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28137237/model-systems-for-pulmonary-infectious-diseases-paradigms-of-anthrax-and-tuberculosis
#19
Gunjan Arora, Richa Misra, Andaleeb Sajid
Robert Koch utilized animal model systems to put forward his postulates while discovering the etiological agents of anthrax and tuberculosis, Bacillus anthracis and Mycobacterium tuberculosis, respectively. After more than 130 years, we have achieved limited success towards understanding these two pestilences, which have propagated as scourge against humans. B. anthracis and M. tuberculosis are diverse organisms, which share a common evolutionary path in tropics. They adapt unique strategies to overcome unfavorable conditions and surpass the host defense mechanisms...
January 30, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28129759/demography-maternal-health-and-the-epidemiology-of-malaria-and-other-major-infectious-diseases-in-the-rural-department-tsamba-magotsi-ngounie-province-in-central-african-gabon
#20
R Zoleko Manego, G Mombo-Ngoma, M Witte, J Held, M Gmeiner, T Gebru, B Tazemda, J Mischlinger, M Groger, B Lell, A A Adegnika, S T Agnandji, P G Kremsner, B Mordmüller, M Ramharter, P B Matsiegui
BACKGROUND: Sub-Saharan Africa is undergoing an epidemiological transition from a predominance of infectious diseases to non-communicable and lifestyle related conditions. However, the pace of this transition and the pattern of disease epidemiology are uneven between affluent urban and rural poor populations. To address this question for a remote rural region located in the central African rainforest region of Gabon, this study was conducted to assess reasons for health care attendance and to characterize the epidemiology of malaria and other major infectious diseases for the department of Tsamba Magotsi...
January 28, 2017: BMC Public Health
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