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burden dengue

Jehangir Khan, Inamullah Khan, Abdul Ghaffar, Bushra Khalid
BACKGROUND: Dengue is becoming more common in Pakistan with its alarming spreading rate. A historical review needs to be carried out to find the root causes of dengue dynamics, the factors responsible for its spread and lastly to formulate future strategies for its control. METHODS: We searched (January, 2015) all the published literature between 1980 and 2014 to determine spread/burden of dengue disease in Pakistan. RESULTS: A total of 81 reports were identified, showing high numbers of dengue cases in 2010, 2011, and 2013...
June 15, 2018: BMC Public Health
Ib C Bygbjerg, Lone Simonsen, Karin L Schiøler
The global malaria burden, including falciparum malaria, has been reduced by 50% since 2000, though less so in Sub-Saharan Africa. Regional malaria elimination campaigns beginning in the 1940s, up-scaled in the 1950s, succeeded in the 1970s in eliminating malaria from Europe, North America, the Caribbean (except Haiti), and parts of Asia and South- and Central America. Dengue has grown dramatically throughout the pantropical regions since the 1950s, first in Southeast Asia in the form of large-scale epidemics including severe dengue, though mostly sparing Sub-Saharan Africa...
2018: Frontiers in Microbiology
Camilly P Pires de Mello, George L Drusano, Jaime L Rodriquez, Ajeet Kaushik, Ashley N Brown
Dengue virus (DENV) is the most prevalent mosquito-borne viral illness in humans. Currently, there are no therapeutic agents available to prevent or treat DENV infections. Our objective was to fill this unmet medical need by evaluating the antiviral activity of interferon-α (IFN) and ribavirin (RBV) as a combination therapy against DENV. DENV-infected Vero and Huh-7 cells were exposed to RBV and/or IFN, and the viral burden was quantified over time by plaque assay. Drug-drug interactions for antiviral effect were determined by fitting a mathematical model to the data...
June 9, 2018: Viruses
Mark Obonyo, Ahmed Fidhow, Victor Ofula
The first laboratory confirmed dengue outbreak in Kenya was reported in coastal towns of Malindi and Kilifi in 1982. Since then, no other outbreak had been confirmed in Kenya. Dengue outbreak was confirmed among African Mission soldiers in Somalia (AMISOM) between May to October 2011. From September 2011, an upsurge of febrile patients who were negative for malaria on microscopy were reported in several health facilities in Mandera town, an adjacent area to Somalia in northern Kenya. We investigated a suspected dengue outbreak in Mandera town from 26th September 2011 to 5th October 2011...
2018: PloS One
Nádia Cristina Pinheiro Rodrigues, Regina Paiva Daumas, Andrea Sobral de Almeida, Reinaldo Souza Dos Santos, Isabella Koster, Pedro Pinheiro Rodrigues, Marcelly de Freitas Gomes, Auriane de Fátima Macedo, Alyssa Gerardi, Iúri da Costa Leite
BACKGROUND: Dengue epidemics have occurred in the city of Rio de Janeiro (Brazil) since 1986. In the year 2015, Zika and chikungunya viruses were introduced in the city, causing sequential and simultaneous epidemics. Poor socioeconomic conditions have been suggested as contributing factors of arboviral infection. OBJECTIVE: To describe the spatial distribution of human cases of symptomatic arboviral infections and to identify risk factors for infection in a poor community of Rio de Janeiro in the years 2015 and 2016...
2018: PloS One
Bach Xuan Tran, Giang Thu Vu, Long Hoang Nguyen, Anh Tuan Le Nguyen, Tung Thanh Tran, Binh Thanh Nguyen, Thao Phuong Thi Thai, Carl A Latkin, Cyrus S H Ho, Roger C M Ho
Dengue fever (DF) outbreaks occur intermittently in Vietnam, and the most recent epidemic happened in 2017. However, attempts to measure the burden of DF in relation to the quality of life and the cost of treatment for patients during an epidemic period are constrained. This study explored the health-related quality of life (HRQOL) and the cost of illness among patients with dengue fever in Vietnam. A cross-sectional study was conducted in Bach Mai Hospital from September to November 2017. The EuroQol-5 dimensions-5 levels (EQ-5D-5L) was used to measure HRQOL...
June 5, 2018: International Journal of Environmental Research and Public Health
Francisco Rogerlândio Martins-Melo, Mariângela Carneiro, Alberto Novaes Ramos, Jorg Heukelbach, Antonio Luiz Pinho Ribeiro, Guilherme Loureiro Werneck
BACKGROUND: Neglected Tropical Diseases (NTDs) are important causes of morbidity, disability, and mortality among poor and vulnerable populations in several countries worldwide, including Brazil. We present the burden of NTDs in Brazil from 1990 to 2016 based on findings from the Global Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016). METHODOLOGY: We extracted data from GBD 2016 to assess years of life lost (YLLs), years lived with disability (YLDs), and disability-adjusted life-years (DALYs) for NTDs by sex, age group, causes, and Brazilian states, from 1990 to 2016...
June 4, 2018: PLoS Neglected Tropical Diseases
K Mehta, A Pajai, S Bhurke, A Shirkande, R Bhadade, R D'Souza
The epidemiological pattern of acute kidney injury (AKI) in tropical countries during monsoon reflects infectious disease as the most important cause. AKI is a confounding factor and may be overlooked by primary health-care providers and underreported in health statistics. The present study prospectively helps estimate the burden of disease and analyze etiology, clinical profile, and outcome in a tertiary care hospital of a metropolitan city in a tropical country. The study period included monsoon season of 2012 and 2013, a total of 8 months...
March 2018: Indian Journal of Nephrology
Getachew Ferede, Moges Tiruneh, Ebba Abate, Yitayih Wondimeneh, Demekech Damtie, Endalamaw Gadisa, Rawleigh Howe, Abraham Aseffa, Belay Tessema
BACKGROUND: Dengue is one of the most serious and rapidly spreading arboviral diseases in the world. Despite many acute febrile illnesses in Ethiopia, the burden of illness due to dengue in the country is largely unknown. Thus, the present study aimed to provide the first baseline data on seroprevalence and associated risk factors of dengue virus (DENV) infection in the country. METHODS: A cross-sectional study of febrile patients who were visiting Metema and Humera hospitals in Northwest Ethiopia from March 2016 to May 2017 was conducted...
May 2018: PLoS Neglected Tropical Diseases
Tri Wangrangsimakul, Thomas Althaus, Mavuto Mukaka, Pacharee Kantipong, Vanaporn Wuthiekanun, Wirongrong Chierakul, Stuart D Blacksell, Nicholas P Day, Achara Laongnualpanich, Daniel H Paris
BACKGROUND: Tropical infectious diseases like dengue, scrub typhus, murine typhus, leptospirosis, and enteric fever continue to contribute substantially to the febrile disease burden throughout Southeast Asia while malaria is declining. Recently, there has been increasing focus on biomarkers (i.e. C-reactive protein (CRP) and procalcitonin) in delineating bacterial from viral infections. METHODOLOGY/PRINCIPAL FINDINGS: A prospective observational study was performed to investigate the causes of acute undifferentiated fever (AUF) in adults admitted to Chiangrai Prachanukroh hospital, northern Thailand, which included an evaluation of CRP and procalcitonin as diagnostic tools...
May 2018: PLoS Neglected Tropical Diseases
Rachel Lowe, Anna M Stewart-Ibarra, Desislava Petrova, Markel García-Díez, Mercy J Borbor-Cordova, Raúl Mejía, Mary Regato, Xavier Rodó
BACKGROUND: El Niño and its effect on local meteorological conditions potentially influences interannual variability in dengue transmission in southern coastal Ecuador. El Oro province is a key dengue surveillance site, due to the high burden of dengue, seasonal transmission, co-circulation of all four dengue serotypes, and the recent introduction of chikungunya and Zika. In this study, we used climate forecasts to predict the evolution of the 2016 dengue season in the city of Machala, following one of the strongest El Niño events on record...
July 2017: Lancet. Planetary Health
Ilane Hernandez-Morales, Marnix Van Loock
Dengue is the most important mosquito-borne viral disease in the world, representing a major unmet medical need and a growing public health concern. The disease imposes a heavy burden to the affected individuals, to the health care systems, and to the economies of endemic countries. Vector control is the most widespread tool to curb dengue epidemics, but has been insufficient. Therefore, additional means such as vaccines and antivirals are required to aid in a coordinated response. The discovery and development of small molecule dengue virus inhibitors as a tool to prevent and/or treat dengue disease faces major hurdles in combining pan-serotypic efficacy, safety, and optimal drug-like properties...
2018: Advances in Experimental Medicine and Biology
Eduardo Samo Gudo, Kerstin Falk, Julie Cliff
Mozambique is a tropical country situated in the Southern part of Africa, a region where data on the burden and epidemiology of arbovirus is presently quite scarce although the frequency of outbreaks caused by arboviruses is rapidly increasing. Outbreaks of dengue fever have been reported in Mozambique, Angola and Tanzania and a recent unprecedented outbreak of Yellow fever has been recorded in Angola. These new outbreaks collectively suggest that arboviruses, and specifically flavivirus infections, are endemic in Mozambique...
2018: Advances in Experimental Medicine and Biology
Laura S Muñoz, Maria A Garcia, Eliza Gordon-Lipkin, Beatriz Parra, Carlos A Pardo
Emerging viral infections of the nervous system represent a major global public health concern in the 21st century. They are caused primarily by RNA viruses and are mostly associated with acute or subacute encephalitis. The spectrum of associated central or peripheral nervous system disorders is broad, and results either from a direct viral effect or due to the host immune responses against the infection. Emerging viral infections impose substantial neurological morbidity and mortality, particularly in low- and middle-income regions...
April 2018: Seminars in Neurology
Shiba Kumar Rai
Many infectious/communicable diseases (IDs) are endemic in Nepal. Until a decade and half ago, IDs were the major cause of both morbidity and mortality accounting 70% for both. However, as a result of various preventive measures implemented by both the state and non-state actors, the overall IDs have shown a changing (declining) trend. The most impressive decline has been seen in the intestinal helminth infection. Though the overall burden of IDs is decreasing, several newer infectious diseases (emerging infections) namely, dengue fever, scrub typhus, influenza (H5N1 and H1N1), and others are posing a great public health problem...
2018: Advances in Experimental Medicine and Biology
Kathryn B Anderson, Timothy P Endy, Stephen J Thomas
Dengue virus infections cause a substantial public health burden in tropical and subtropical regions. A single dengue vaccine has been approved by regulatory authorities in 19 countries, but concerns regarding vaccine safety in people who are dengue naive at the time of immunisation has introduced uncertainty into the vaccine's future. As other dengue vaccines complete or enter large-scale efficacy trials, we argue that foundational work by Sabin, historic epidemiological observations of dengue outbreaks, and prospective cohort studies in Asia and the Americas indicate that modifications must be made to the methods of assessing dengue vaccines...
May 18, 2018: Lancet Infectious Diseases
José Moreira, Clarisse S Bressan, Patricia Brasil, Andre M Siqueira
BACKGROUND: The causes of acute febrile illness (AFI) in Latin America (LA) are diverse and its complexity increase as the proportion of fever due to malaria decreases as control and new pathogens emerge in the region. In this context, it is important to shed light over the gaps on the epidemiological characteristics and the geographic range for many AFI aetiologies. AIMS: To review studies on community-acquired fever etiology other than malaria in LA, and to highlight knowledge gaps and challenges needing further investigation...
May 16, 2018: Clinical Microbiology and Infection
Heather A Flores, Scott L O'Neill
Aedes mosquito-transmitted diseases, such as dengue, Zika and chikungunya, are becoming major global health emergencies while old threats, such as yellow fever, are re-emerging. Traditional control methods, which have focused on reducing mosquito populations through the application of insecticides or preventing breeding through removal of larval habitat, are largely ineffective, as evidenced by the increasing global disease burden. Here, we review novel mosquito population reduction and population modification approaches with a focus on control methods based on the release of mosquitoes, including the release of Wolbachia-infected mosquitoes and strategies to genetically modify the vector, that are currently under development and have the potential to contribute to a reversal of the current alarming disease trends...
May 18, 2018: Nature Reviews. Microbiology
Atchara Paemanee, Atitaya Hitakarun, Sittiruk Roytrakul, Duncan R Smith
OBJECTIVE: Infections with the mosquito transmitted dengue virus (DENV) are a significant public health burden in many parts of the world. Despite the introduction of a commercial vaccine in some parts of the world, the majority of the populations at risk of infection remain unprotected against this disease, and there is currently no treatment for DENV infection. Natural compounds offer the prospect of cheap and sustainable therapeutics to reduce the disease burden during infection, and thus potentially alleviate the risk of more severe disease...
May 16, 2018: BMC Research Notes
Laith Hussain-Alkhateeb, Axel Kroeger, Piero Olliaro, Joacim Rocklöv, Maquins Odhiambo Sewe, Gustavo Tejeda, David Benitez, Balvinder Gill, S Lokman Hakim, Roberta Gomes Carvalho, Leigh Bowman, Max Petzold
BACKGROUND: Dengue outbreaks are increasing in frequency over space and time, affecting people's health and burdening resource-constrained health systems. The ability to detect early emerging outbreaks is key to mounting an effective response. The early warning and response system (EWARS) is a toolkit that provides countries with early-warning systems for efficient and cost-effective local responses. EWARS uses outbreak and alarm indicators to derive prediction models that can be used prospectively to predict a forthcoming dengue outbreak at district level...
2018: PloS One
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