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Chikungunya in childrens

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https://www.readbyqxmd.com/read/29697796/differences-in-transmission-and-disease-severity-between-two-successive-waves-of-chikungunya
#1
Aubree Gordon, Lionel Gresh, Sergio Ojeda, Gerardo Chowell-Puente, Karla Gonzalez, Nery Sanchez, Saira Saborio, Juan Carlos Mercado, Guillermina Kuan, Angel Balmaseda, Eva Harris
Background: Chikungunya, an arboviral disease, caused massive epidemics in Central and South America in 2014-2016. In a prospective pediatric cohort study, we describe the introduction of chikungunya in a naïve population and investigate transmission and clinical characteristics. Methods: Children presenting to the study health center with chikungunya-like illness or undifferentiated fever were tested for chikungunya virus (CHIKV) infection by RT-PCR and serological assays...
April 25, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29671914/the-neurological-complications-of-chikungunya-virus-a-systematic-review
#2
REVIEW
Ravi Mehta, Patrick Gerardin, Carlos Alexandre Antunes de Brito, Cristiane Nascimento Soares, Maria Lucia Brito Ferreira, Tom Solomon
We performed a systematic review on the neurological complications of chikungunya virus. Such complications are being reported increasingly, owing primarily to the scale of recent epidemics but also to a growing understanding of the virus' neurovirulence. We performed a thorough literature search using PubMed and Scopus databases, summating the data on all published reports of neurological disease associated with chikungunya virus. We appraised the data for each major condition in adults, children, and neonates, as well as evaluating the latest evidence on disease pathogenesis and management strategies...
April 19, 2018: Reviews in Medical Virology
https://www.readbyqxmd.com/read/29627722/economic-costs-of-chikungunya-virus-in-colombia
#3
Nelson J Alvis-Zakzuk, Diana Díaz-Jiménez, Liliana Castillo-Rodríguez, Carlos Castañeda-Orjuela, Ángel Paternina-Caicedo, Hernando Pinzón-Redondo, María Carrasquilla-Sotomayor, Nelson Alvis-Guzmán, Fernando De La Hoz-Restrepo
OBJECTIVE: The aim of the present study was to estimate the economic impact of chikungunya virus (CHIKV) infection in Colombia from a societal perspective. METHODS: We conducted a retrospective, bottom-up cost-of-illness study in clinically confirmed cases during the first chikungunya (CHIK) outbreak in Colombia in 2014. Direct and indirect costs were estimated per patient. Economic costs were calculated by the addition of direct costs (direct medical costs and out-of-pocket heath expenditures) and indirect cost as a result of loss of productivity...
April 5, 2018: Value in Health Regional Issues
https://www.readbyqxmd.com/read/29604514/renal-involvement-in-fatal-cases-of-chikungunya-virus-infection
#4
Marcela Mercado, Jorge Acosta-Reyes, Edgar Parra, Luis Guzmán, Mauricio Beltrán, Philippe Gasque, Carlos Mejía-García, Diego Viasus
BACKGROUND: Information regarding physiopathology and complications in fatal cases of chikungunya virus (CHIKV) is scarce. OBJECTIVES: The aim of this study was to describe the frequency and severity of renal complications in fatal cases associated with CHIKV infection based on the clinical and histopathological features from post-mortem tissue biopsies. STUDY DESIGN: This retrospective study included fatal cases associated with CHIKV infection occurring from September 2014 through October 2015, reported to National System for Public Health Surveillance (SIVIGILA) and laboratory-confirmed by the National Institute of Health of Colombia...
March 23, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29582731/vector-borne-disease-is-a-common-cause-of-hospitalized-febrile-illness-in-india
#5
Matthew L Robinson, Dileep Kadam, Sandhya Khadse, Usha Balasubramanian, Priyanka Raichur, Chhaya Valvi, Ivan Marbaniang, Savita Kanade, Jonathan Sachs, Anita Basavaraj, Renu Bharadwaj, Anju Kagal, Vandana Kulkarni, Jonathan Zenilman, George Nelson, Yukari C Manabe, Aarti Kinikar, Amita Gupta, Vidya Mave
Acute febrile illness (AFI) is a major cause of morbidity and mortality in India and other resource-limited settings, yet systematic etiologic characterization of AFI has been limited. We prospectively enrolled adults ( N = 970) and children (age 6 months to 12 years, N = 755) admitted with fever from the community to Sassoon General Hospital in Pune, India, from July 2013 to December 2015. We systematically performed a standardized clinical history, clinical laboratories, and diagnostics. Results from additional testing ordered by treating clinicians were also recorded...
March 26, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29573443/stevens-johnson-syndrome-and-toxic-epidermal-necrolysis-like-cutaneous-presentation-of-chikungunya-fever-a-case-series
#6
Taru Garg, Sarita Sanke, Riaz Ahmed, Ram Chander, Srikanta Basu
Chikungunya fever is a benign, self-limiting, acute viral illness. An epidemic occurred in New Delhi, India, in August and September 2016. We observed many cases with atypical cutaneous features mimicking Stevens-Johnson syndrome and toxic epidermal necrolysis during this epidemic, especially in infants and children. Twenty-one children (13 [61.9%] boys, 8 [38%] girls) presenting with vesico-bullous and necrotic lesions were reviewed. Cutaneous presentation included vesicles and bullae with purpuric macules and necrosis, seen in 16 (76%) patients...
March 24, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29562870/sleep-eeg-of-microcephaly-in-zika-outbreak
#7
Paulo Afonso Medeiros Kanda, Aline de Almeida Xavier Aguiar, Jose Lucivan Miranda, Alexandre Loverde Falcao, Claudia Suenia Andrade, Luigi Neves Dos Santos Reis, Ellen White R Bacelar Almeida, Yanes Brum Bello, Arthur Monfredinho, Rafael Guimaraes Kanda
Microcephaly (MC), previously considered rare, is now a health emergency of international concern because of the devastating Zika virus pandemic outbreak of 2015. The authors describe the electroencephalogram (EEG) findings in sleep EEG of epileptic children who were born with microcephaly in areas of Brazil with active Zika virus transmission between 2014 and 2017. The authors reviewed EEGs from 23 children. Nine were females (39.2%), and the age distribution varied from 4 to 48 months. MC was associated with mother positive serology to toxoplasmosis (toxo), rubella (rub), herpes, and dengue (1 case); toxo (1 case); chikungunya virus (CHIKV) (1 case); syphilis (1 case); and Zika virus (ZIKV) (10 cases)...
2018: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/29527187/emerging-viral-infections-in-sub-saharan-africa-and-the-developing-nervous-system-a-mini-review
#8
REVIEW
Angelina Kakooza-Mwesige, Abdul H Mohammed, Krister Kristensson, Sharon L Juliano, Julius J Lutwama
The global public health concern is heightened over the increasing number of emerging viruses, i.e., newly discovered or previously known that have expanded into new geographical zones. These viruses challenge the health-care systems in sub-Saharan Africa (SSA) countries from which several of them have originated and been transmitted by insects worldwide. Some of these viruses are neuroinvasive, but have been relatively neglected by neuroscientists. They may provide experiments by nature to give a time window for exposure to a new virus within sizeable, previously non-infected human populations, which, for instance, enables studies on potential long-term or late-onset effects on the developing nervous system...
2018: Frontiers in Neurology
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
#9
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 (2014-2015) of an arbovirus surveillance study conducted in Machala, Ecuador, a dengue-endemic region. 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...
May 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29410208/trends-in-insect-repellent-formulations-a-review
#10
REVIEW
Melanie Tavares, Márcio Robert Mattos da Silva, Luciana Betzler de Oliveira de Siqueira, Raphaela Aparecida Schuenck Rodrigues, Lolita Bodjolle-d'Almeida, Elisabete Pereira Dos Santos, Eduardo Ricci-Júnior
The use of natural and synthetic repellents, marketed in different pharmaceutical forms, is growing in the world due to the emerging vector-borne viral diseases as Dengue, Zika, Chikungunya, Yellow Fever and Malaria. The choice of the ideal formulation will depend on a series of factors to be analyzed: type of repellent active (natural or synthetic), pharmaceutical forms (spray, lotion, cream, gel), action time duration (short or long), environment of exposure and the user (adult, pregnant women, children, newborn)...
March 25, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29364411/-prevention-diagnosis-and-treatment-of-pediatric-infections-during-natural-disasters
#11
Flavia Morán, Theresa J Ochoa
The objective of this review was to provide guidelines regarding the diagnosis, treatment, and prevention of the most common infectious diseases in children during natural disasters, including floods such as those that occurred in the summer of 2017 in Peru. This instrument should be used by physicians and health personnel working in primary health care. The management of diarrheal, respiratory, skin, and eye diseases, vector-transmitted diseases such as dengue, chikungunya, and Zika, and zoonoses such as leptospirosis is discussed...
October 2017: Revista Peruana de Medicina Experimental y Salud Pública
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
#12
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
#13
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/28861067/transcriptomic-analyses-reveal-differential-gene-expression-of-immune-and-cell-death-pathways-in-the-brains-of-mice-infected-with-west-nile-virus-and-chikungunya-virus
#14
Stephanie M Lim, Henk-Jan van den Ham, Minoushka Oduber, Eurydice Martina, Fatiha Zaaraoui-Boutahar, Jeroen M Roose, Wilfred F J van IJcken, Albert D M E Osterhaus, Arno C Andeweg, Penelope Koraka, Byron E E Martina
West Nile virus (WNV) and chikungunya virus (CHIKV) are arboviruses that are constantly (re-)emerging and expanding their territory. Both viruses often cause a mild form of disease, but severe forms of the disease can consist of neurological symptoms, most often observed in the elderly and young children, respectively, for which the mechanisms are poorly understood. To further elucidate the mechanisms responsible for end-stage WNV and CHIKV neuroinvasive disease, we used transcriptomics to compare the induction of effector pathways in the brain during the early and late stage of disease in young mice...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28737626/perinatal-chikungunya-virus-associated-encephalitis-leading-to-postnatal-onset-microcephaly-and-optic-atrophy
#15
Regina Ramos, Rafaela Viana, Alessandra Brainer-Lima, Telma FloreÂncio, Maria Durce Carvalho, Vanessa van der Linden, Antonio Amorim, Maria AÂngela Rocha, Fabíola Medeiros
Chikungunya virus is capable of affecting the nervous system of children and adults. We describe a case of sepsis and encephalitis triggered by this agent in a newborn whose mother developed symptoms of acute infection 2 days before delivery. Consequently, the infant had severe encephalitis that evolved with postnatal-onset microcephaly, bilateral optic atrophy, epilepsy and cerebral palsy.
January 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28719301/development-of-a-real-time-reverse-transcription-polymerase-chain-reaction-for-o-nyong-nyong-virus-and-evaluation-with-clinical-and-mosquito-specimens-from-kenya
#16
Jesse Waggoner, Claire Jane Heath, Bryson Ndenga, Francis Mutuku, Malaya K Sahoo, Alisha Mohamed-Hadley, John Vulule, Dunstan Mukoko, A Desiree LaBeaud, Benjamin A Pinsky
O'nyong-nyong virus (ONNV), an alphavirus closely related to chikungunya virus (CHIKV), has been the documented cause of two large outbreaks in east Africa; however, little is known about the contribution of ONNV to cases of acute febrile illness during interepidemic periods. An ONNV real-time reverse transcription polymerase chain reaction (rRT-PCR) was developed and evaluated using clinical and mosquito pool samples. The ONNV rRT-PCR linear range extended from 8.0 to 2.0 log10 copies/μL, and the lower limit of 95% detection was 22...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719300/chikungunya-and-zika-virus-cases-detected-against-a-backdrop-of-endemic-dengue-transmission-in-vietnam
#17
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/28702473/malaria-and-chikungunya-detected-using-molecular-diagnostics-among-febrile-kenyan-children
#18
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/28662144/seroprevalence-of-antibodies-to-dengue-and-chikungunya-viruses-in-thailand
#19
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/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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