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https://www.readbyqxmd.com/read/29149175/the-introduction-of-dengue-follows-transportation-infrastructure-changes-in-the-state-of-acre-brazil-a-network-based-analysis
#1
Raquel Martins Lana, Marcelo Ferreira da Costa Gomes, Tiago França Melo de Lima, Nildimar Alves Honório, Cláudia Torres Codeço
Human mobility, presence and passive transportation of Aedes aegypti mosquito, and environmental characteristics are a group of factors which contribute to the success of dengue spread and establishment. To understand this process, we assess data from dengue national and municipal basins regarding population and demographics, transportation network, human mobility, and Ae. aegypti monitoring for the Brazilian state of Acre since the first recorded dengue case in the year 2000 to the year 2015. During this period, several changes in Acre's transport infrastructure and urbanization have been started...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29141337/-epidemiology-of-imported-infectious-diseases-in-china-2013-2016
#2
Y L Wang, X Wang, R Q Ren, L Zhou, W W Tu, D X Ni, Q Li, Z J Feng, Y P Zhang
Objective: To describe the epidemic of imported infectious diseases in China between 2013 and 2016, including the kinds of infectious diseases, affected provinces, source countries and the epidemiological characteristics, and provide scientific information for the prevention and control of imported infectious diseases. Methods: Data of cases of imported infectious diseases in China from 2013 to 2016 were collected from national information reporting system of infectious diseases, Microsoft Excel 2010 and SPSS 18...
November 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/29122384/strengthening-global-vaccine-access-for-adolescents-and-adults
#3
REVIEW
Angeline Nanni, Stefanie Meredith, Stephanie Gati, Karin Holm, Tom Harmon, Ann Ginsberg
Global immunization efforts to date have heavily focused on infants and children, with noted success on public health. Healthy adolescents and adults contribute to the economic growth and development of countries but efforts to ensure vaccine coverage for these groups receive inadequate global attention and resources. Emerging epidemics for a number of infectious diseases including Ebola, Zika, dengue, malaria and the continuing epidemics of tuberculosis and several sexually transmitted infections, including HIV, HPV and Hepatitis B, have high incidence and prevalence in adolescents and adults...
November 6, 2017: Vaccine
https://www.readbyqxmd.com/read/29115370/-febrile-syndromes-in-the-traveler-returning-from-tropical-regions-admitted-in-a-monographic-unit
#4
N Moya Notario, M Hernández-Cabrera, C Carranza-Rodríguez, E Pisos-Álamo, N Jaén-Sánchez, J L Pérez-Arellano
OBJECTIVE: The aim was to analyse those syndromes with 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 with fever, amongst all travellers evaluated in our department between 1998 and 2013...
November 8, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/29112671/travel-characteristics-and-pretravel-health-care-among-pregnant-or-breastfeeding-u-s-women-preparing-for-international-travel
#5
Stefan H F Hagmann, Sowmya R Rao, Regina C LaRocque, Stefanie Erskine, Emily S Jentes, Allison T Walker, Elizabeth D Barnett, Lin H Chen, Davidson H Hamer, Edward T Ryan
OBJECTIVE: To study characteristics and preventive interventions of adult pregnant and breastfeeding travelers seeking pretravel health care in the United States. METHODS: This cross-sectional study analyzed data (2009-2014) of pregnant and breastfeeding travelers seen at U.S. travel clinics participating in Global TravEpiNet. Nonpregnant, nonbreastfeeding adult female travelers of childbearing age were used for comparison. We evaluated the prescription of malaria chemoprophylaxis and antibiotics for this population as well as the administration of three travel-related vaccines: hepatitis A, typhoid, and yellow fever...
November 3, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29099491/the-bacterium-wolbachia-exploits-host-innate-immunity-to-establish-a-symbiotic-relationship-with-the-dengue-vector-mosquito-aedes-aegypti
#6
Xiaoling Pan, Andrew Pike, Deepak Joshi, Guowu Bian, Michael J McFadden, Peng Lu, Xiao Liang, Fengrui Zhang, Alexander S Raikhel, Zhiyong Xi
A host's immune system plays a central role in shaping the composition of the microbiota and, in return, resident microbes influence immune responses. Symbiotic associations of the maternally transmitted bacterium Wolbachia occur with a wide range of arthropods. It is, however, absent from the dengue and Zika vector mosquito Aedes aegypti in nature. When Wolbachia is artificially forced to form symbiosis with this new mosquito host, it boosts the basal immune response and enhances the mosquito's resistance to pathogens, including dengue, Zika virus and malaria parasites...
November 3, 2017: ISME Journal
https://www.readbyqxmd.com/read/29067074/profile-of-hepatic-involvement-in-dengue-infections-in-adult-pakistani-population
#7
Somia Iqtadar, Nabeel Akbar, Naima Huma, Fawad Ahmad Randhawa
OBJECTIVES: To estimate the range of hepatic involvement in dengue infections by assessing clinical and biochemical profile of adult dengue infected patients. METHODS: Serologically confirmed 220 adult cases of dengue infections admitted to Mayo hospital from June 2013 to November 2013 were classified as having dengue fever, dengue haemorragic fever and dengue shock syndrome. The frequency and range of bilirubin, liver enzymes derangement and presence of liver enlargement in each group was calculated and further stratified according to age and gender...
July 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29065822/privileged-structures-in-the-design-of-potential-drug-candidates-for-neglected-diseases
#8
Ana Cristina Lima Leite, José Wanderlan Pontes Espíndola, Marcos Veríssimo de Oliveira Cardoso, Gevanio Bezerra de Oliveira Filho
Privileged motifs are recurring in a wide range of biologically active compounds that reach different pharmaceutical targets and pathways and could represent a suitable start point to access potential candidates in the neglected diseases field. The current therapies to treat these diseases are based in drugs that lack of the desired effectiveness, affordable methods of synthesis and allow a way to emergence of resistant strains. Due the lack of financial return, only few pharmaceutical companies have been investing in research for new therapeutics for neglected diseases (ND)...
October 23, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29063886/evaluation-of-concurrent-malaria-and-dengue-infections-among-febrile-patients
#9
Parul D Shah, Tanmay K Mehta
CONTEXT: Despite a wide overlap between endemic areas for two important vector-borne infections, malaria and dengue, published reports of co-infections are scarce till date. AIMS: To find the incidence of dengue and malaria co-infection as well as to ascertain the severity of such dengue and malaria co-infection based on clinical and haematological parameters. SETTING AND DESIGN: Observational, retrospective cross-sectional study was designed including patients who consulted the tertiary care hospital of Ahmedabad seeking treatment for fever compatible with malaria and/or dengue...
July 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29040262/serological-and-spatial-analysis-of-alphavirus-and-flavivirus-prevalence-and-risk-factors-in-a-rural-community-in-western-kenya
#10
Elysse N Grossi-Soyster, Elizabeth A J Cook, William A de Glanville, Lian F Thomas, Amy R Krystosik, Justin Lee, C Njeri Wamae, Samuel Kariuki, Eric M Fèvre, A Desiree LaBeaud
Alphaviruses, such as chikungunya virus, and flaviviruses, such as dengue virus, are (re)-emerging arboviruses that are endemic in tropical environments. In Africa, arbovirus infections are often undiagnosed and unreported, with febrile illnesses often assumed to be malaria. This cross-sectional study aimed to characterize the seroprevalence of alphaviruses and flaviviruses among children (ages 5-14, n = 250) and adults (ages 15 ≥ 75, n = 250) in western Kenya. Risk factors for seropositivity were explored using Lasso regression...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29031286/surveillance-of-vector-borne-infections-chikungunya-dengue-and-malaria-in-bo-sierra-leone-2012-2013
#11
Donald F Dariano, Chris R Taitt, Kathryn H Jacobsen, Umaru Bangura, Alfred S Bockarie, Moses J Bockarie, Joseph Lahai, Joseph M Lamin, Tomasz A Leski, Chadwick Yasuda, David A Stenger, Rashid Ansumana
Malaria remains a significant cause of morbidity and mortality in West Africa, but the contribution of other vector-borne infections (VBIs) to the burden of disease has been understudied. We used rapid diagnostic tests (RDTs) for three VBIs to test blood samples from 1,795 febrile residents of Bo City, Sierra Leone, over a 1-year period in 2012-2013. In total, 24% of the tests were positive for malaria, fewer than 5% were positive for markers of dengue virus infection, and 39% were positive for IgM directed against chikungunya virus (CHIKV) or a related alphavirus...
October 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29031082/quantum-associative-memory-with-linear-and-non-linear-algorithms-for-the-diagnosis-of-some-tropical-diseases
#12
J-P Tchapet Njafa, S G Nana Engo
This paper presents the QAMDiagnos, a model of Quantum Associative Memory (QAM) that can be a helpful tool for medical staff without experience or laboratory facilities, for the diagnosis of four tropical diseases (malaria, typhoid fever, yellow fever and dengue) which have several similar signs and symptoms. The memory can distinguish a single infection from a polyinfection. Our model is a combination of the improved versions of the original linear quantum retrieving algorithm proposed by Ventura and the non-linear quantum search algorithm of Abrams and Lloyd...
September 21, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28978319/acute-undifferentiated-fever-in-india-a-multicentre-study-of-aetiology-and-diagnostic-accuracy
#13
Kristine Mørch, Anand Manoharan, Sara Chandy, Novin Chacko, Gerardo Alvarez-Uria, Suvarna Patil, Anil Henry, Joel Nesaraj, Cijoy Kuriakose, Ashita Singh, Siby Kurian, Christel Gill Haanshuus, Nina Langeland, Bjørn Blomberg, George Vasanthan Antony, Dilip Mathai
BACKGROUND: The objectives of this study were to determine the proportion of malaria, bacteraemia, scrub typhus, leptospirosis, chikungunya and dengue among hospitalized patients with acute undifferentiated fever in India, and to describe the performance of standard diagnostic methods. METHODS: During April 2011-November 2012, 1564 patients aged ≥5 years with febrile illness for 2-14 days were consecutively included in an observational study at seven community hospitals in six states in India...
October 4, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28960920/a-proteo-genomic-analysis-of-haptoglobin-in-malaria
#14
Gauri Awasthi, Suchi Tyagi, Vipin Kumar, Sandip Kumar Patel, Dharmendar Rojh, Vijeth Sakrappanavar, Sanjay Kumar Kochar, Arunansu Talukdar, Biaus Samanta, Aparup Das, Sanjeeva Srivastava, Swati Patankar
Haptoglobin (Hp), an acute phase inflammatory protein has been associated with malaria pathogenesis in several proteomics studies. The gene has two co-dominant alleles: Hp1 and Hp2 that produce three genotypes: Hp1/Hp1, Hp1/Hp2 and Hp2/Hp2. In this study, we perform validation of the proteomics data with Multiple Reaction Monitoring Mass Spectroscopy (MRM-MS). We further analyze the association of the Hp gene variants with severe, non-severe malaria and community (healthy) controls using genotyping PCRs and DNA sequencing...
September 27, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28957351/superb-feeding-behavior-of-aedes-albopictus-transmitting-zika-virus
#15
Young Ran Ha, Jun Ho Kim, Jeongeun Ryu, Sang Joon Lee
Disease-mediated mosquitoes have been receiving much attention, as the World Health Organization recently declared the Zika virus a global public health emergency. Mosquitoes transmit pathogens that cause various tropical diseases including malaria, dengue fever and yellow fever as well as Zika virus. The vector efficiency of mosquitoes depends on their blood-feeding characteristics and the mechanics of their blood-sucking pump system, but only a few studies have attempted to investigate these key issues. In this study, we demonstrate the rapid and gluttonous liquid-feeding characteristics of Ae...
2017: PloS One
https://www.readbyqxmd.com/read/28932814/the-gut-commensal-microbiome-of-drosophila-melanogaster-is-modified-by-the-endosymbiont-wolbachia
#16
Rama K Simhadri, Eva M Fast, Rong Guo, Michaela J Schultz, Natalie Vaisman, Luis Ortiz, Joanna Bybee, Barton E Slatko, Horacio M Frydman
Endosymbiotic Wolbachia bacteria and the gut microbiome have independently been shown to affect several aspects of insect biology, including reproduction, development, life span, stem cell activity, and resistance to human pathogens, in insect vectors. This work shows that Wolbachia bacteria, which reside mainly in the fly germline, affect the microbial species present in the fly gut in a lab-reared strain. Drosophila melanogaster hosts two main genera of commensal bacteria-Acetobacter and Lactobacillus. Wolbachia-infected flies have significantly reduced titers of Acetobacter...
September 2017: MSphere
https://www.readbyqxmd.com/read/28924518/clinical-spectrum-of-chikungunya-in-pakistan
#17
Syeda Naqvi, Shehroz Bashir, Chintan Rupareliya, Abdullah Shams, Pirthvi Raj Giyanwani, Zeeshan Ali, Faiza Qamar, Vijesh Kumar, Vikash Talib
Background Chikungunya fever is a pandemic disease caused by an arthropod-borne chikungunya virus (CHIKV). The virus spreads through mosquitoes. This mosquito induced viral illness is clinically suspected on symptoms from fever and severe polyarthralgia. The recent outbreak of chikungunya was reported in November 2016 in the metropolitan city Karachi, Pakistan. We emphasis on the awareness of the etiology and vector control to prevent serious consequences. Method A total number of 1275 patients were included in this cross-sectional study...
July 6, 2017: Curēus
https://www.readbyqxmd.com/read/28919170/importation-of-travel-related-infectious-diseases-is-increasing-in-south-korea-an-analysis-of-salmonellosis-shigellosis-malaria-and-dengue-surveillance-data
#18
Young-June Choe, Seung-Ah Choe, Sung-Il Cho
BACKGROUND: International travel has an important role in transmission of emerging infectious diseases. We described the imported infectious diseases in Korea from 2003 to 2012, and to analyze association of travels with the change in the incidences. METHODS: We used National Notifiable Disease Surveillance System to investigate the incidence of salmonellosis, shigellosis, malaria, and dengue. Data from Korea Tourism Organization was used to describe the inbound and outbound travelers by their age group, gender, and purpose of travel...
September 15, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28910810/concurrent-infection-with-plasmodium-vivax-and-the-dengue-and-chikungunya-viruses-in-a-paediatric-patient-from-new-delhi-india-in-2016
#19
Ayesha Tazeen, Mohd Abdullah, Malik Hisamuddin, Sher Ali, Irshad H Naqvi, Hirday N Verma, Anwar Ahmed, Shama Parveen
Dengue and chikungunya fevers are transmitted by the common mosquito vector Aedes and malaria by Anopheles. Concurrent infections are reported due to co-circulation of these pathogens, especially in endemic regions. We report a rare case of triple infection with 3 arthropod-borne pathogens (Plasmodium vivax and the dengue and chikungunya viruses) in a 3-year-old child from New Delhi, India, in August 2016. The viruses were identified by RT-PCR and the parasite by microscopy and antigen detection. The dengue virus serotype 3 sequence was clustered in the genotype III by the phylogenetic analysis...
2017: Intervirology
https://www.readbyqxmd.com/read/28883973/vectored-immunoprophylaxis-an-emerging-adjunct-to-traditional-vaccination
#20
REVIEW
John W Sanders, Todd A Ponzio
The successful development of effective vaccines has been elusive for many of the world's most important infectious diseases. Additionally, much of the population, such as the aged or immunocompromised, are unable to mount an effective immunologic response for existing vaccines. Vectored Immunoprophylaxis (VIP) is a novel approach designed to address these challenges. Rather than utilizing an antigen to trigger a response from the host's immune system as is normally done with traditional vaccines, VIP genetically engineers the production of tailored antibodies from non-hematopoietic cells, bypassing the humoral immune system...
2017: Tropical Diseases, Travel Medicine and Vaccines
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