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dengue in children

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https://www.readbyqxmd.com/read/28798927/is-dengue-emerging-as-important-cause-of-acute-liver-failure-in-endemic-regions
#1
Lavleen Singh, Amitabh Singh, Mitali Agarwal, Sataroopa Mishra
Dengue virus infection continues to be major public health problem in large part of world. The epidemiology of dengue viral infection is becoming increasingly complex and has substantially changed over almost past six decades not only in terms of prevalent strains and geographical locations but also in terms of disease severity and atypical presentations. Though liver is the most common organ affected but is generally asymptomatic. We present a case of infant with severe dengue who died of fulminant hepatic failure and showed pan lobular necrosis on post mortem liver biopsy...
July 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28798738/zika-virus-an-emerging-worldwide-threat
#2
Irfan A Rather, Jameel B Lone, Vivek K Bajpai, Woon K Paek, Jeongheui Lim
ZIKA virus (ZIKV) poses a severe threat to the world. Recent outbreaks of ZIKV after 2007 along with its quick transmission have made this virus a matter of international concern. The virus shows symptoms that are similar to those caused in the wake of dengue virus (DENV) and other flaviviruses, which makes it difficult to discern the viral infection. Diagnosis is further complicated as the virus cross-reacts with antibodies of other viruses. Currently, molecular diagnosis of the virus is being performed by RT-PCR and IgM-captured enzyme-linked immunosorbent assay (MAC-ELISA)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28770247/age-of-initial-cohort-of-dengue-patients-could-explain-the-origin-of-disease-outbreak-in-a-setting-a-case-control-study-in-rajasthan-india
#3
Annette Angel, Bennet Angel, Karuna Yadav, Neha Sharma, Vinod Joshi, Indu Thanvi, Sharad Thanvi
Dengue fever (DF) and dengue hemorrhagic fever (DHF) is a public health problem with 390 million cases reported in world annually. In Rajasthan, DF with DHF is being reported for about two decades. For undertaking interventions into disease transmission, locating origin of transmission is very important. Present paper reports retrospective analysis of the hospital reported cases of dengue during the year 2013-2014 undertaken in Barmer, Rajasthan. To address task of investigating outbreak, detailed analysis of the data on serological test results (Mac-ELISA assay of NS1, IgG and IgM) performed by local hospital, Balotra was made...
June 2017: Virusdisease
https://www.readbyqxmd.com/read/28726595/co-circulation-and-co-infections-of-all-dengue-virus-serotypes-in-hyderabad-india-2014
#4
K Vaddadi, C Gandikota, P K Jain, V S V Prasad, M Venkataramana
The burden of dengue virus infections increased globally during recent years. Though India is considered as dengue hyper-endemic country, limited data are available on disease epidemiology. The present study includes molecular characterization of dengue virus strains occurred in Hyderabad, India, during the year 2014. A total of 120 febrile cases were recruited for this study, which includes only children and 41 were serologically confirmed for dengue positive infections using non-structural (NS1) and/or IgG/IgM ELISA tests...
September 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28719300/chikungunya-and-zika-virus-cases-detected-against-a-backdrop-of-endemic-dengue-transmission-in-vietnam
#5
Nguyen Than Ha Quyen, Duong Thi Hue Kien, Maia Rabaa, Nguyen Minh Tuan, Tran Thuy Vi, Le Van Tan, Nguyen Thanh Hung, Ha Manh Tuan, Ta Van Tram, Nguyen Le Da Ha, Han Khoi Quang, Nguyen Quoc Doanh, Nguyen Van Vinh Chau, Bridget Wills, Cameron P Simmons
Between 2010 and 2014, four chikungunya and two Zika virus infections were identified among 8,105 febrile children in southern Vietnam. Zika viruses were linked to French Polynesian strains, chikungunya to Cambodian strains. Against a backdrop of endemic dengue transmission, chikungunya and Zika present an additional arboviral disease burden in Vietnam.
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28716893/which-dengue-vaccine-approach-is-the-most-promising-and-should-we-be-concerned-about-enhanced-disease-after-vaccination-there-is-only-one-true-winner
#6
Scott B Halstead
The scientific community now possesses information obtained directly from human beings that makes it possible to understand why breakthrough-enhanced dengue virus (DENV) infections occurred in children receiving Sanofi Pasteur's Dengvaxia tetravalent live attenuated vaccine and to predict the possibility of breakthrough-enhanced DENV infections following immunization with two other tetravalent live attenuated vaccines now in phase III testing. Based upon recent research, Dengvaxia, lacking DENV nonstructural protein antigens, did not protect seronegatives because it failed to raise a competent T-cell response and/or antibodies to NS1...
July 17, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28712817/clinical-features-and-dynamic-ordinary-laboratory-tests-differentiating-dengue-fever-from-other-febrile-illnesses-in-children
#7
Chih-Ho Chen, Yi-Chuan Huang, Kuang-Che Kuo, Chung-Chen Li
BACKGROUND: Dengue fever is not easily to be diagnosed before presentation of the classic symptoms. The study aimed to investigate the clinical features and dynamic laboratory tests in pediatric patients to facilitate dengue diagnosis. METHODS: This retrospective study examined the medical records of all pediatric patients who were clinically suspected to have dengue from June to December 2014. Laboratory-positive dengue cases were confirmed by detecting non-structural protein NS1, reverse transcription-polymerase chain reaction of dengue virus, and dengue-specific IgM seroconversion...
June 30, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28705180/etiology-and-prognosis-of-acute-viral-encephalitis-and-meningitis-in-chinese-children-a-multicentre-prospective-study
#8
Junhong Ai, Zhengde Xie, Gang Liu, Zongbo Chen, Yong Yang, Yuning Li, Jing Chen, Guo Zheng, Kunling Shen
BACKGROUND: In China, there were few studies about the pathogens of acute viral encephalitis and meningitis in children in recent years. The aims of this study were to characterize the etiology and prognosis of acute viral encephalitis and meningitis in Chinese children. METHODS: This was a multicentre prospective study. Two hundred and sixty one viral encephalitis patients and 285 viral meningitis patients were enrolled. The mean age of viral encephalitis and meningitis were 5...
July 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28702473/malaria-and-chikungunya-detected-using-molecular-diagnostics-among-febrile-kenyan-children
#9
Jesse Waggoner, Julie Brichard, Francis Mutuku, Bryson Ndenga, Claire Jane Heath, Alisha Mohamed-Hadley, Malaya K Sahoo, John Vulule, Martina Lefterova, Niaz Banaei, Dunstan Mukoko, Benjamin A Pinsky, A Desiree LaBeaud
BACKGROUND: In sub-Saharan Africa, malaria is frequently overdiagnosed as the cause of an undifferentiated febrile illness, whereas arboviral illnesses are presumed to be underdiagnosed. METHODS: Sera from 385 febrile Kenyan children, who presented to 1 of 4 clinical sites, were tested using microscopy and real-time molecular assays for dengue virus (DENV), chikungunya virus (CHIKV), malaria, and Leptospira. RESULTS: Malaria was the primary clinical diagnosis for 254 patients, and an arboviral infection (DENV or CHIKV) was the primary diagnosis for 93 patients...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28699570/camino-verde-the-green-way-evidence-based-community-mobilisation-for-dengue-control-in-nicaragua-and-mexico-feasibility-study-and-study-protocol-for-a-randomised-controlled-trial
#10
Neil Andersson, Jorge Arostegui, Elizabeth Nava-Aguilera, Eva Harris, Robert J Ledogar
BACKGROUND: Since the Aedes aegypti mosquitoes that transmit dengue virus can breed in clean water, WHO-endorsed vector control strategies place sachets of organophosphate pesticide, temephos (Abate), in household water storage containers. These and other pesticide-dependent approaches have failed to curb the spread of dengue and multiple dengue virus serotypes continue to spread throughout tropical and subtropical regions worldwide. A feasibility study in Managua, Nicaragua, generated instruments, intervention protocols, training schedules and impact assessment tools for a cluster randomised controlled trial of community-based approaches to vector control comprising an alternative strategy for dengue prevention and control in Nicaragua and Mexico...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28699562/which-green-way-description-of-the-intervention-for-mobilising-against-aedes-aegypti-under-difficult-security-conditions-in-southern-mexico
#11
REVIEW
Arcadio Morales-Perez, Elizabeth Nava-Aguilera, José Legorreta-Soberanis, Sergio Paredes-Solís, Alejandro Balanzar-Martínez, Felipe René Serrano-de Los Santos, Claudia Erika Ríos-Rivera, Jaime García-Leyva, Robert J Ledogar, Anne Cockcroft, Neil Andersson
BACKGROUND: Community mobilisation for prevention requires engagement with and buy in from those communities. In the Mexico state of Guerrero, unprecedented social violence related to the narcotics trade has eroded most community structures. A recent randomised controlled trial in 90 coastal communities achieved sufficient mobilisation to reduce conventional vector density indicators, self-reported dengue illness and serologically proved dengue virus infection. METHODS: The Camino Verde intervention was a participatory research protocol promoting local discussion of baseline evidence and co-design of vector control solutions...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28699560/dengue-occurrence-relations-and-serology-cross-sectional-analysis-of-results-from-the-guerrero-state-mexico-baseline-for-a-cluster-randomised-controlled-trial-of-community-mobilisation-for-dengue-prevention
#12
Elizabeth Nava-Aguilera, Arcadio Morales-Pérez, Alejandro Balanzar-Martínez, Ofelia Rodríguez-Ramírez, Abel Jiménez-Alejo, Miguel Flores-Moreno, David Gasga-Salinas, José Legorreta-Soberanis, Sergio Paredes-Solís, Pedro Antonio Morales-Nava, María de Lourdes Soto-Ríos, Robert J Ledogar, Joséfina Coloma, Eva Harris, Neil Andersson
BACKGROUND: The Mexican arm of the Camino Verde trial of community mobilisation for dengue prevention covered three coastal regions of Guerrero state: Acapulco, Costa Grande and Costa Chica. A baseline cross-sectional survey provided data for community mobilisation and for adapting the intervention design to concrete conditions in the intervention areas. METHODS: Trained field teams constructed community profiles in randomly selected clusters, based on observation and key informant interviews...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28699557/-where-we-put-little-fish-in-the-water-there-are-no-mosquitoes-a-cross-sectional-study-on-biological-control-of-the-aedes-aegypti-vector-in-90-coastal-region-communities-of-guerrero-mexico
#13
Arcadio Morales-Pérez, Elizabeth Nava-Aguilera, José Legorreta-Soberanis, Antonio Juan Cortés-Guzmán, Alejandro Balanzar-Martínez, Eva Harris, Josefina Coloma, Víctor M Alvarado-Castro, Mónica Violeta Bonilla-Leon, Liliana Morales-Nava, Robert J Ledogar, Anne Cockcroft, Neil Andersson
BACKGROUND: In the Mexican state of Guerrero, some households place fish in water storage containers to prevent the development of mosquito larvae. Studies have shown that larvivorous fish reduce larva count in household water containers, but there is a lack of evidence about whether the use of fish is associated with a reduction in dengue virus infection. We used data from the follow up survey of the Camino Verde cluster randomised controlled trial of community mobilisation to reduce dengue risk to study this association...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28662144/seroprevalence-of-antibodies-to-dengue-and-chikungunya-viruses-in-thailand
#14
Sompong Vongpunsawad, Duangnapa Intharasongkroh, Thanunrat Thongmee, Yong Poovorawan
The abundance of Aedes mosquito species enabled widespread transmission of mosquito-borne chikungunya virus (CHIKV) and dengue virus (DENV) in Southeast Asia. Periodic seroprevalence surveys are therefore necessary to assess the viral burden in the population and the effectiveness of public health interventions. Since the current seroprevalence for CHIKV and DENV in Thailand are unknown, we evaluated evidence of past infection among Thais. Eight-hundred and thirty-five serum samples obtained from individuals living in central and southern Thailand were assessed for anti-CHIKV and anti-DENV IgG antibodies using commercial enzyme-linked immunosorbent assays...
2017: PloS One
https://www.readbyqxmd.com/read/28658384/increase-in-the-burden-of-dengue-in-brazil-and-federated-units-2000-and-2015-analysis-of-the-global-burden-of-disease-study-2015
#15
Valdelaine Etelvina Miranda de Araújo, Juliana Maria Trindade Bezerra, Frederico Figueiredo Amâncio, Valéria Maria de Azeredo Passos, Mariângela Carneiro
Objective: To describe the main metrics on dengue generated by Global Burden of Disease (GBD) Study 2015, for Brazil and its 27 federated units, in the years 2000 and 2015. Methods: The metrics described were: incidence and mortality rates by dengue, standardized by age, years of life lost (YLL), years lived with disability (YLD), and disability-adjusted life years (DALY) (in absolute frequency and age-standardized rates). The estimated metrics were presented with uncertainty intervals (UI 95%) for the years 2000 and 2015, accompanied by the relative percentages of changes...
May 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/28617803/dengue-seroprevalence-and-force-of-primary-infection-in-a-representative-population-of-urban-dwelling-indonesian-children
#16
Ari Prayitno, Anne-Frieda Taurel, Joshua Nealon, Hindra Irawan Satari, Mulya Rahma Karyanti, Rini Sekartini, Soedjatmiko Soedjatmiko, Hartono Gunardi, Bernie Endyarni Medise, R Tedjo Sasmono, James Mark Simmerman, Alain Bouckenooghe, Sri Rezeki Hadinegoro
BACKGROUND: Indonesia reports the second highest dengue disease burden in the world; these data are from passive surveillance reports and are likely to be significant underestimates. Age-stratified seroprevalence data are relatively unbiased indicators of past exposure and allow understanding of transmission dynamics. METHODOLOGY/PRINCIPAL FINDINGS: To better understand dengue infection history and associated risk factors in Indonesia, a representative population-based cross-sectional dengue seroprevalence study was conducted in 1-18-year-old urban children...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28614453/dengue-infection-during-pregnancy-and-adverse-maternal-fetal-and-infant-health-outcomes-in-rio-branco-acre-state-brazil-2007-2012
#17
Helena Albuquerque Catão Feitoza, Sergio Koifman, Rosalina Jorge Koifman, Valéria Saraceni
The effects of dengue infection during pregnancy have not been previously studied in Rio Branco, Acre State, Brazil. The aim of this study was to determine the risks of maternal, fetal, and infant complications resulting from dengue infection during pregnancy. The study compared two cohorts of pregnant women, exposed versus unexposed to dengue virus, from 2007 to 2012. Incidence rates and risk ratios were estimated for maternal, fetal, and infant complications. In the exposed cohort there were 3 fetal deaths and 5 neonatal deaths...
June 12, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28599640/dengue-type-4-in-rio-de-janeiro-brazil-case-characterization-following-its-introduction-in-an-endemic-region
#18
Manoela Heringer, Thiara Manuele A Souza, Monique da Rocha Q Lima, Priscila Conrado G Nunes, Nieli Rodrigues da C Faria, Fernanda de Bruycker-Nogueira, Thaís Chouin-Carneiro, Rita Maria R Nogueira, Flavia Barreto Dos Santos
BACKGROUND: Due to the populations' susceptibility, DENV-4 introduction in 2010 led to the occurrence of explosive epidemics in the following years in Brazil. In 2011, DENV-4 was identified in Rio de Janeiro (RJ) and it was prevalent in 2012 and 2013. Here, we aimed to characterize clinical, epidemiological and laboratorial aspects of DENV-4 cases after this serotype introduction in an endemic scenario. METHODS: Dengue suspected cases (n = 3727) were received and analyzed from January 2011 to December 2013, during outbreaks occurred in RJ, Brazil...
June 9, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28596655/a-correlation-of-the-platelet-count-with-d-dimer-levels-as-an-indicator-for-component-therapy-in-children-with-dengue-hemorrhagic-fever
#19
Arthi Sridhar, B M Sunil Kumar, Aarathi Rau, A T K Rau
Dengue Fever (DF) may evolve into two life threatening forms-Dengue Hemorrhagic Fever (DHF) and Dengue Shock Syndrome (DSS). DHF is associated with increased vascular permeability and plasma leakage causing thrombocytopenia and loss of clotting factors into the third space and may result in bleeding initially due to thrombocytopenia and later due to disseminated intravascular coagulation (DIC), often as a terminal event. Prompt recognition and treatment of minor bleeds in DF children with incipient DIC with component therapy may be associated with improved survival while failure to do so is usually catastrophic...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28575919/zika-virus-infection-in-pregnant-women-and-microcephaly
#20
Geraldo Duarte, Antonio Fernandes Moron, Artur Timerman, César Eduardo Fernandes, Corintio Mariani Neto, Gutemberg Leão de Almeida Filho, Heron Werner Junior, Hilka Flavia Barra do Espírito Santo, João Alfredo Piffero Steibel, João Bortoletti Filho, Juvenal Barreto Borriello de Andrade, Marcelo Burlá, Marcos Felipe Silva de Sá, Newton Eduardo Busso, Paulo César Giraldo, Renato Augusto Moreira de Sá, Renato Passini Junior, Rosiane Mattar, Rossana Pulcineli Vieira Francisco
From the discovery of the Zika virus (ZIKV) in 1947 in Uganda (Africa), until its arrival in South America, it was not known that it would affect human reproductive life so severely. Today, damage to the central nervous system is known to be multiple, and microcephaly is considered the tip of the iceberg. Microcephaly actually represents the epilogue of this infection's devastating process on the central nervous system of embryos and fetuses. As a result of central nervous system aggression by the ZIKV, this infection brings the possibility of arthrogryposis, dysphagia, deafness and visual impairment...
May 2017: Revista Brasileira de Ginecologia e Obstetrícia
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