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https://www.readbyqxmd.com/read/29690906/a-forecasting-model-for-dengue-incidence-in-the-district-of-gampaha-sri-lanka
#1
Gayan P Withanage, Sameera D Viswakula, Y I Nilmini Silva Gunawardena, Menaka D Hapugoda
BACKGROUND: Dengue is one of the major health problems in Sri Lanka causing an enormous social and economic burden to the country. An accurate early warning system can enhance the efficiency of preventive measures. The aim of the study was to develop and validate a simple accurate forecasting model for the District of Gampaha, Sri Lanka. Three time-series regression models were developed using monthly rainfall, rainy days, temperature, humidity, wind speed and retrospective dengue incidences over the period January 2012 to November 2015 for the District of Gampaha, Sri Lanka...
April 24, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29690895/history-epidemiology-and-diagnostics-of-dengue-in-the-american-and-brazilian-contexts-a-review
#2
REVIEW
Tiago Souza Salles, Thayane da Encarnação Sá-Guimarães, Evelyn Seam Lima de Alvarenga, Victor Guimarães-Ribeiro, Marcelo Damião Ferreira de Meneses, Patricia Faria de Castro-Salles, Carlucio Rocha Dos Santos, Ana Claudia do Amaral Melo, Marcia Regina Soares, Davis Fernandes Ferreira, Monica Ferreira Moreira
Dengue virus (DENV), an arbovirus transmitted by mosquitoes, has become a major threat to American human life, reaching approximately 23 million cases from 1980 to 2017. Brazil is among the countries most affected by this terrible viral disease, with 13.6 million cases. DENV has four different serotypes, DENV1-4, which show a broad clinical spectrum. Dengue creates a staggering epidemiological and economic burden for endemic countries. Without a specific therapy and with a commercial vaccine that presents some problems relative to its full effectiveness, initiatives to improve vector control strategies, early disease diagnostics and the development of vaccines and antiviral drugs are priorities...
April 24, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29690593/the-social-and-spatial-ecology-of-dengue-presence-and-burden-during-an-outbreak-in-guayaquil-ecuador-2012
#3
Catherine A Lippi, Anna M Stewart-Ibarra, Ángel G Muñoz, Mercy J Borbor-Cordova, Raúl Mejía, Keytia Rivero, Katty Castillo, Washington B Cárdenas, Sadie J Ryan
Dengue fever, a mosquito-borne arbovirus, is a major public health concern in Ecuador. In this study, we aimed to describe the spatial distribution of dengue risk and identify local social-ecological factors associated with an outbreak of dengue fever in the city of Guayaquil, Ecuador. We examined georeferenced dengue cases ( n = 4248) and block-level census data variables to identify social-ecological risk factors associated with the presence/absence and burden of dengue in Guayaquil in 2012. Local Indicators of Spatial Association (LISA), specifically Anselin’s Local Moran’s I, and Moran’s I tests were used to locate hotspots of dengue transmission, and multimodel selection was used to identify covariates associated with dengue presence and burden at the census block level...
April 23, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29628230/chitosan-stabilized-nasal-emulsion-delivery-system-for-effective-humoral-and-cellular-response-against-recombinant-tetravalent-dengue-antigen
#4
Sravanthi Vemireddy, Preethi Pallavi M C, Sampath Kumar Halmuthur M
Nasal vaccine delivery systems are emerging alternatives to the conventional sub unit vaccine delivery systems owing to their ability to stimulate potent antigen specific humoral and cellular immune responses. Additional virtue of nasal delivery is its close proximity of immune cells to external epithelial layer which is the route of entry to pathogens. Toxicity of emulsion based vaccine delivery systems may be attributed to the presence of high quantities of surfactants used for stabilizing the emulsions. A safer approach would be to reduce physiologically unwanted surfactant burden in the emulsion to the bare limit to necessity...
June 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29621534/diversity-of-dengue-virus-3-genotype-iii-in-jeddah-saudi-arabia
#5
Anwar M Hashem, Sayed S Sohrab, Sherif A El-Kafrawy, Adly M M Abd-Alla, Saeid Abo El-Ela, Turki S Abujamel, Ahmed M Hassan, Suha A Farraj, Noura A Othman, Remi N Charrel, Esam I Azhar
BACKGROUND: Dengue is the most important arboviral disease in tropical and subtropical countries. Dispersal of the vector and an increase in migratory flow between countries have led to large epidemics and severe clinical outcomes. Over the past 20 years, dengue epidemics have become more wide-spread and frequent. Previous studies have shown that dengue is endemic in Jeddah, Makkah and Al-Madinah in western Saudi Arabia as well as in Jazan region in the southern part of the country. The four serotypes of dengue virus (DENV) have been reported from western Saudi Arabia...
April 2, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29619364/harnessing-big-data-for-communicable-tropical-and-sub-tropical-disorders-implications-from-a-systematic-review-of-the-literature
#6
Vincenza Gianfredi, Nicola Luigi Bragazzi, Daniele Nucci, Mariano Martini, Roberto Rosselli, Liliana Minelli, Massimo Moretti
Aim: According to the World Health Organization (WHO), communicable tropical and sub-tropical diseases occur solely, or mainly in the tropics, thriving in hot, and humid conditions. Some of these disorders termed as neglected tropical diseases are particularly overlooked. Communicable tropical/sub-tropical diseases represent a diverse group of communicable disorders occurring in 149 countries, favored by tropical and sub-tropical conditions, affecting more than one billion people and imposing a dramatic societal and economic burden...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29608586/dengue-forecasting-in-s%C3%A3-o-paulo-city-with-generalized-additive-models-artificial-neural-networks-and-seasonal-autoregressive-integrated-moving-average-models
#7
Oswaldo Santos Baquero, Lidia Maria Reis Santana, Francisco Chiaravalloti-Neto
Globally, the number of dengue cases has been on the increase since 1990 and this trend has also been found in Brazil and its most populated city-São Paulo. Surveillance systems based on predictions allow for timely decision making processes, and in turn, timely and efficient interventions to reduce the burden of the disease. We conducted a comparative study of dengue predictions in São Paulo city to test the performance of trained seasonal autoregressive integrated moving average models, generalized additive models and artificial neural networks...
2018: PloS One
https://www.readbyqxmd.com/read/29564154/severity-and-burden-of-hand-foot-and-mouth-disease-in-asia-a-modelling-study
#8
Wee Ming Koh, Hishamuddin Badaruddin, Hanh La, Mark I-Cheng Chen, Alex R Cook
Background: Hand, foot and mouth disease (HFMD) affects millions of children across Asia annually, leading to an increase in implemented control policies such as surveillance, isolation and social distancing in affected jurisdictions. However, limited knowledge of disease burden and severity causes difficulty in policy optimisation as the associated economic cost cannot be easily estimated. We use a data synthesis approach to provide a comprehensive picture of HFMD disease burden, estimating infection risk, symptomatic rates, the risk of complications and death, and overall disability-adjusted life-year (DALY) losses, along with associated uncertainties...
2018: BMJ Global Health
https://www.readbyqxmd.com/read/29555345/rapid-response-to-an-emerging-infectious-disease-lessons-learned-from-development-of-a-synthetic-dna-vaccine-targeting-zika-virus
#9
Sagar B Kudchodkar, Hyeree Choi, Emma L Reuschel, Rianne Esquivel, Jackie Jin-Ah Kwon, Moonsup Jeong, Joel N Maslow, Charles C Reed, Scott White, J Joseph Kim, Gary P Kobinger, Pablo Tebas, David B Weiner, Kar Muthumani
Vaccines are considered one of the greatest advances in modern medicine. The global burden of numerous infectious diseases has been significantly reduced, and in some cases, effectively eradicated through the deployment of specific vaccines. However, efforts to develop effective vaccines against infectious pathogens such as influenza, HIV, dengue virus (DENV), chikungunya virus (CHIKV), Ebola virus, and Zika virus (ZIKV) have proven challenging. Zika virus is a mosquito-vectored flavivirus responsible for periodic outbreaks of disease in Africa, Southeast Asia, and the Pacific Islands dating back over 50 years...
March 16, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29534105/dengue-virus-in-aedes-aegypti-and-aedes-albopictus-in-urban-areas-in-the-state-of-rio-grande-do-norte-brazil-importance-of-virological-and-entomological-surveillance
#10
Arlinete S Medeiros, Diego M P Costa, Mário S D Branco, Daíse M C Sousa, Joelma D Monteiro, Sílvio P M Galvão, Paulo Roberto M Azevedo, José V Fernandes, Selma M B Jeronimo, Josélio M G Araújo
BACKGROUND: Vector control remains the sole effective method to prevent dengue virus (DENV) transmission, although a vaccine for dengue has recently become available and testing of its efficacy and coverage is being performed in multiple places. Entomological surveillance is a key factor in alerting authorities to possible outbreaks, but until now natural DENV infection of mosquito populations has been scarcely used as an early warning system to monitor fluctuating prevalence of infected mosquitoes...
2018: PloS One
https://www.readbyqxmd.com/read/29531658/clinical-and-hematological-profile-of-patients-with-dengue-fever-at-a-tertiary-care-hospital-an-observational-study
#11
Kunal Tewari, Vishal Vishnu Tewari, Ritu Mehta
Background: Dengue is a major health issue with seasonal rise in dengue fever cases imposing an additional burden on hospitals, necessitating bolstering of services in the emergency department, laboratory with creation of additional dengue fever wards. Objectives: To study the clinical and hematological profile of dengue fever cases presenting to a hospital. Methods: Patients with fever and other signs of dengue with either positive NS1 antigen test or IgM or IgG antibody were included...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29520688/experimental-in-vitro-and-in-vivo-systems-for-studying-the-innate-immune-response-during-dengue-virus-infections
#12
REVIEW
Bouchra Kitab, Michinori Kohara, Kyoko Tsukiyama-Kohara
Dengue is the most prevalent arboviral disease in humans and leads to significant morbidity and socioeconomic burden in tropical and subtropical areas. Dengue is caused by infection with any of the four closely related serotypes of dengue virus (DENV1-4) and usually manifests as a mild febrile illness, but may develop into fatal dengue hemorrhagic fever and shock syndrome. There are no specific antiviral therapies against dengue because understanding of DENV biology is limited. A tetravalent chimeric dengue vaccine, Dengvaxia, has finally been licensed for use, but its efficacy was significantly lower against DENV-2 infections and in dengue-naïve individuals...
March 8, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29515913/current-strategies-and-successes-in-engaging-women-in-vector-control-a-systematic-review
#13
Jayleen K L Gunn, Kacey C Ernst, Katherine E Center, Kristi Bischoff, Annabelle V Nuñez, Megan Huynh, Amanda Okello, Mary H Hayden
Introduction: Vector-borne diseases (VBDs) cause significant mortality and morbidity in low-income and middle-income countries and present a risk to high-income countries. Vector control programmes may confront social and cultural norms that impede their execution. Anecdotal evidence suggests that incorporating women in the design, delivery and adoption of health interventions increases acceptance and compliance. A better understanding of programmes that have attempted to increase women's involvement in vector control could help shape best practices...
2018: BMJ Global Health
https://www.readbyqxmd.com/read/29512485/frequent-community-use-of-antibiotics-among-a-low-economic-status-population-in-manila-the-philippines-a-prospective-assessment-using-a-urine-antibiotic-bioassay
#14
Nobuo Saito, Noriko Takamura, Grace P Retuerma, Carina H Frayco, Paul S Solano, Cherlyn D Ubas, Arianne V Lintag, Maricel R Ribo, Rontgene M Solante, Alexis Q Dimapilis, Elizabeth O Telan, Winston S Go, Motoi Suzuki, Koya Ariyoshi, Christopher M Parry
The widespread unregulated use of antibiotics without medical consultation contributes to the burden of antibiotic resistance in Southeast Asian countries. This study investigated antibiotic use before hospital consultation. In a prospective observational study from February 2, 2015, to July 2, 2015, we enrolled febrile patients attending the emergency room in San Lazaro Hospital, Manila, the Philippines. A urine sample was collected and a bioassay was used to detect antibiotic activity in urine using Bacillus stearothermophilus (ATCC7953), Escherichia coli (ATCC25922), and Streptococcus pyogenes (ATCC19615)...
March 5, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29512482/the-burden-of-dengue-fever-and-chikungunya-in-southern-coastal-ecuador-epidemiology-clinical-presentation-and-phylogenetics-from-the-first-two-years-of-a-prospective-study
#15
Anna M Stewart-Ibarra, Sadie J Ryan, Aileen Kenneson, Christine A King, Mark Abbott, Arturo Barbachano-Guerrero, Efraín Beltrán-Ayala, Mercy J Borbor-Cordova, Washington B Cárdenas, Cinthya Cueva, Julia L Finkelstein, Christina D Lupone, Richard G Jarman, Irina Maljkovic Berry, Saurabh Mehta, Mark Polhemus, Mercy Silva, Timothy P Endy
Here, we report the findings from the first 2 years of an arbovirus surveillance study conducted in Machala, Ecuador, a dengue-endemic region (2014-2015). Patients with suspected dengue virus (DENV) infections (index cases, N = 324) were referred from five Ministry of Health clinical sites. A subset of DENV-positive index cases ( N = 44) were selected, and individuals from the index household and four neighboring homes within 200 m were recruited ( N = 400). Individuals who entered the study, other than the index cases, are referred to as associates...
March 5, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29504327/dengue-knowledge-in-indoor-dengue-patients-from-low-socioeconomic-class-aetiology-symptoms-mode-of-transmission-and-prevention
#16
Nadia Shams, Sadia Amjad, Nadeem Yousaf, Waqar Ahmed, Naresh Kumar Seetlani, Shazia Farhat
BACKGROUND: Dengue fever has emerged as an emerging public health issue during last decade bearing significant morbidity and economic burden particularly in third world countries. Current study aims to assess various domains of knowledge of indoor dengue patients.. METHODS: This descriptive crosssectional study was conducted at Medicine dept. Rawal Institute of Health Sciences Islamabad and BBH Rawalpindi over 6 months. One hundred & twenty-five adult indoor confirmed cases of dengue from lower socioeconomic class were included after ethical approval...
January 2018: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29500926/effects-of-climate-change-on-the-spread-of-zika-virus-a-public-health-threat
#17
Hina Asad, David O Carpenter
Zika is a vector-borne viral disease transmitted to humans primarily by Aedes aegypti mosquitoes. The increased climate instability has contributed to the emergence of infections carried by mosquitoes like dengue, chikungunya and zika. While infection with the zika virus is not new, the recent epidemic of microcephaly in Brazil and other countries in South America resulting from the infection of pregnant women with the zika virus raise a number of serious public health concerns. These include the question of how climate change affects the range of zika vectors, what can we do to shorten the length of mosquito season, how and why the symptoms of zika infection have changed and what can be done to reduce the burden of human disease from this infection? Another important question that needs to be answered is what are the factors that caused the zika virus to leave the non-human primates and/or other mammals and invade the human population?...
March 28, 2018: Reviews on Environmental Health
https://www.readbyqxmd.com/read/29499698/identification-of-priority-health-conditions-for-field-based-screening-in-urban-slums-in-bangalore-india
#18
Sarah Abdi, Avanti Wadugodapitiya, Sandra Bedaf, Carolin Elizabeth George, Gift Norman, Mark Hawley, Luc de Witte
BACKGROUND: Urban slums are characterised by unique challenging living conditions, which increase their inhabitants' vulnerability to specific health conditions. The identification and prioritization of the key health issues occurring in these settings is essential for the development of programmes that aim to enhance the health of local slum communities effectively. As such, the present study sought to identify and prioritise the key health issues occurring in urban slums, with a focus on the perceptions of health professionals and community workers, in the rapidly growing city of Bangalore, India...
March 2, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29494580/hyperendemic-dengue-transmission-and-identification-of-a-locally-evolved-denv-3-lineage-papua-new-guinea-2007-2010
#19
Dagwin Luang-Suarkia, Oriol Mitja, Timo Ernst, Shannon Bennett, Alfred Tay, Russell Hays, David W Smith, Allison Imrie
BACKGROUND: Dengue is endemic in the Western Pacific and Oceania and the region reports more than 200,000 cases annually. Outbreaks of dengue and severe dengue occur regularly and movement of virus throughout the region has been reported. Disease surveillance systems, however, in many areas are not fully established and dengue incidence is underreported. Dengue epidemiology is likely least understood in Papua New Guinea (PNG), where the prototype DENV-2 strain New Guinea C was first isolated by Sabin in 1944 but where routine surveillance is not undertaken and little incidence and prevalence data is available...
March 1, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29452109/dengue-infection-in-patients-with-febrile-illness-and-its-relationship-to-climate-factors-a-case-study-in-the-city-of-jeddah-saudi-arabia-for-the-period-2010-2014
#20
Anwar M Hashem, Turki Abujamel, Rowa Alhabbab, Mansour Almazroui, Esam I Azhar
Dengue is an important global arboviral disease with expanding geographical range. It is a major public health concern in Western Saudi Arabia since its first detection in the city of Jeddah in 1994. In this retrospective study, we examined dengue incidence among febrile patients suspected for acute dengue infection at King Abdulaziz University Hospital, Jeddah from 2010 to 2014 and we tried to determine the effect of climate factors on dengue incidence in the city. Acute dengue incidence rates among clinically suspected patients showed annual variation with a range from 29...
February 13, 2018: Acta Tropica
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