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Infant dengue

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https://www.readbyqxmd.com/read/27869384/-atypical-mucocutaneous-manifestations-in-neonates-and-infants-with-chikungunya-fever-in-the-municipalities-of-c%C3%A3%C2%BAcuta-los-patios-and-villa-del-rosario-norte-de-santander-colombia-2014
#1
Claudia Marcela Muñoz, José Orlando Castillo, Daniela Salas, Milena Alexandra Valderrama, Claudia Teresa Rangel, Heiddy Patricia Vargas, Diana Carolina Silva
INTRODUCTION: Atypical clinical manifestations have been observed in newborns and infants suffering from fever caused by the chikungunya virus. Objective: To describe the cases of fever caused by the chikungunya virus in newborns and infants with atypical mucocutaneous lesions. Materials and methods: We reviewed the clinical records, as well as lab tests and histopathological results, of newborns and infants diagnosed with Chikungunya virus and atypical mucocutaneous lesions in three regional hospitals...
September 1, 2016: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/27862008/zika-virus-global-health-challenge-threat-and-current-situation
#2
REVIEW
Hafsa Aziz, Aadarash Zia, Amania Anwer, Muneeba Aziz, Shazia Fatima, Muhammad Faheem
ZIKV has emerged as grave global health issue in the past few years. ZIKV was firstly isolated in 1947 from a rhesus sentinel monkey in the Zika forest in Uganda. It is usually transmitted by the bite of infected mosquitoes and infects skin fibroblasts, skin keratinocytes etc. ZIKV until now was under reported because of its clinical similarity with the dengue and chikungunya. It usually spread through the course of the sylvatic cycle. In this cycle, the virus or pathogen lifespan is spent between the wild animal and vectors...
November 10, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27775637/zika-virus-infection-and-microcephaly-evidence-for-a-causal-link
#3
Jin-Na Wang, Feng Ling
Zika virus (ZIKV) is a flavivirus related to the Dengue, yellow fever and West Nile viruses. Since the explosive outbreaks of ZIKV in Latin America in 2015, a sudden increase in the number of microcephaly cases has been observed in infants of women who were pregnant when they contracted the virus. The severity of this condition raises grave concerns, and extensive studies on the possible link between ZIKV infection and microcephaly have been conducted. There is substantial evidence suggesting that there is a causal link between ZIKV and microcephaly, however, future studies are warranted to solidify this association...
October 20, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27760799/vertical-transmission-of-dengue-virus-in-the-peripartum-period-and-viral-kinetics-in-newborns-and-breast-milk-new-data
#4
Lucille Arragain, Myrielle Dupont-Rouzeyrol, Olivia O'Connor, Nathalie Sigur, Jean-Paul Grangeon, Emilie Huguon, Clothilde Dechanet, Cécile Cazorla, Ann-Claire Gourinat, Elodie Descloux
: We investigated 10 mother-newborn pairs and found a 90% rate of dengue virus (DENV) transmission during the perinatal period. Here, we describe DENV kinetics in the sera of newborns before the onset of disease. Of the breast-milk samples analyzed, 75% tested positive for DENV. BACKGROUND: Dengue is the most common mosquito-borne viral disease in humans. With this study, we aimed to investigate the risk of vertical (DENV) transmission during the peripartum period and to describe its viral kinetics in serum and breast milk...
October 19, 2016: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/27578857/dengue-fever-in-infants-report-of-three-cases
#5
Sumit Mehndiratta, Ritika Singhal, Krishnan Rajeshwari, Anand P Dubey
Dengue fever has classically been described as a disease of children and young adults. Infants are naturally protected by virtue of maternally derived immunoglobulins, especially in endemic countries. The resurgence of dengue, coupled with the availability of early and sensitive diagnostic methods and a high degree of clinical suspicion, has led to an increasing number of infants being diagnosed. There is a wide spectrum of clinical manifestations, particularly in infancy. Here we describe three cases presenting with diverse clinical features, their subsequent management and outcome...
August 30, 2016: Tropical Doctor
https://www.readbyqxmd.com/read/27560782/total-and-envelope-protein-specific-antibody-secreting-cell-response-in-pediatric-dengue-is-highly-modulated-by-age-and-subsequent-infections
#6
Jessica F Toro, Doris M Salgado, Rocío Vega, Jairo A Rodríguez, Luz-Stella Rodríguez, Juana Angel, Manuel A Franco, Harry B Greenberg, Carlos F Narváez
The response of antibody-secreting cells (ASC) induced by dengue has only recently started to be characterized. We propose that young age and previous infections could be simple factors that affect this response. Here, we evaluated the primary and secondary responses of circulating ASC in infants (6-12 months old) and children (1-14 years old) infected with dengue showing different degrees of clinical severity. The ASC response was delayed and of lower magnitude in infants, compared with older children. In primary infection (PI), the total and envelope (E) protein-specific IgM ASC were dominant in infants but not in children, and a negative correlation was found between age and the number of IgM ASC (rho = -0...
2016: PloS One
https://www.readbyqxmd.com/read/27556807/incidence-and-risk-factors-for-developing-dengue-associated-hemophagocytic-lymphohistiocytosis-in-puerto-rico-2008-2013
#7
Esther M Ellis, Tyler M Sharp, Janice Pérez-Padilla, Liza González, B Katherine Poole-Smith, Emmaculate Lebo, Charlotte Baker, Mark J Delorey, Brenda Torres-Velasquez, Eduardo Ochoa, Brenda Rivera-Garcia, Hector Díaz-Pinto, Luis Clavell, Anabel Puig-Ramos, Gritta E Janka, Kay M Tomashek
BACKGROUND: Hemophagocytic lymphohistiocytosis (HLH) is a rare, potentially fatal disorder characterized by fever, pancytopenia, hepatosplenomegaly, and increased serum ferritin. HLH is being increasingly reported as a complication of dengue, a common tropical acute febrile illness. METHODOLOGY/PRINCIPAL FINDINGS: After a cluster of pediatric dengue-associated HLH patients was identified during the 2012-2013 dengue epidemic in Puerto Rico, active surveillance and a case-control investigation was conducted at four referral hospitals to determine the incidence of HLH in children and identify risk factors for HLH following dengue...
August 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27525287/dengue-fever-causes-complications-and-vaccine-strategies
#8
REVIEW
Niyati Khetarpal, Ira Khanna
Dengue is a highly endemic infectious disease of the tropical countries and is rapidly becoming a global burden. It is caused by any of the 4 serotypes of dengue virus and is transmitted within humans through female Aedes mosquitoes. Dengue disease varies from mild fever to severe conditions of dengue hemorrhagic fever and shock syndrome. Globalization, increased air travel, and unplanned urbanization have led to increase in the rate of infection and helped dengue to expand its geographic and demographic distribution...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27393087/zika-virus-infections-an-overview-of-current-scenario
#9
REVIEW
Javid Iqbal Dasti
Zika virus (ZIKV) was discovered more than half a century ago, recently it has gained unprecedented attention by the global health community. Until 2007, only 14 cases of human ZIKV infections were reported around the globe, while during the current outbreak, estimated cases mounted to approximately 1.5 million in Brazil alone, the virus was disseminated to wider South-American territories and travel-associated ZIKV infections were reported in USA, Europe and recently in China. ZIKV infections remain asymptomatic in approximately 80% of the individuals, and no anti-viral treatments were recommended...
July 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27378663/-dengue-with-unusual-clinical-features-in-an-infant-case-report
#10
Nina Méndez-Domínguez, Kikey Achach-Medina, Yareni María Morales-Gual, Salvador Gómez-Carro
INTRODUCTION: The state of Yucatan, in Mexico, is an endemic area for dengue. During 2015, there was an unpredicted increase in the number of expected cases of dengue fever. OBJECTIVE: To describe and analyse the clinical presentation, progress, and management of a case of dengue infection with non-specific clinical manifestations in an infant which resulted in a dengue shock syndrome. CASE REPORT: One month old infant admitted to hospital with a generalised rash and a history of being bitten by an insect...
July 1, 2016: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/27374486/isolation-and-characterization-of-oya-virus-a-member-of-simbu-serogroup-family-bunyaviridae-isolated-from-karnataka-india
#11
Pragya Yadav, Anita Shete, Vijay Bondre, Deepak Patil, Prasad Kokate, Sweena Chaudhari, Sneha Srivastava, Santosh Jadhav, Devendra Mourya
During a study on Japanese encephalitis (JE) from Kolar district of Karnataka state, India in 1986; two virus isolates were obtained in infant Swiss albino mouse from a pig and a human serum sample. For characterization of these virus isolates, they were propagated in Vero CCL-81 cells. These virus isolates were screened for flaviviruses (Japanese encephalitis, West Nile, Dengue, Kyasanur forest disease) and Alphavirus (Chikungunya) by RT-PCR and found to be negative. Further these they were screened for bunyaviruses using genus-specific primers...
October 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27341339/relative-contribution-of-dengue-igg-antibodies-acquired-during-gestation-or-breastfeeding-in-mediating-dengue-disease-enhancement-and-protection-in-type-i-interferon-receptor-deficient-mice
#12
Pei Xuan Lee, Li Ching Ong, Eshele Anak Libau, Sylvie Alonso
Dengue virus (DENV) causes a spectrum of diseases ranging from self-limiting dengue fever to severe conditions such as haemorrhagic fever and dengue shock syndrome. Antibody-dependent enhancement (ADE) is thought to explain the occurrence of severe dengue whereby pre-existing binding but non-neutralising antibodies enhance DENV infection. The ADE phenomenon is supported by epidemiological findings that infants that born to dengue immune mothers are at greater risk to develop severe dengue upon primary infection...
June 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27236271/expanded-spectrum-of-congenital-ocular-findings-in-microcephaly-with-presumed-zika-infection
#13
Homero Augusto de Miranda, Marcelo Cavalcante Costa, Maria Auxiliadora Monteiro Frazão, Natália Simão, Sandra Franchischini, Darius M Moshfeghi
PURPOSE: To describe the ocular findings of 3 cases of suspected congenital Zika viral infection with microcephaly and maculopathy. DESIGN: Retrospective, consecutive case series. PARTICIPANTS: Three male infants born in northern Brazil whose mothers demonstrated a viral syndrome during the first trimester and who subsequently were born with microcephaly. METHODS: Observational report of macular findings. MAIN OUTCOME MEASURES: Continued observation...
August 2016: Ophthalmology
https://www.readbyqxmd.com/read/27193266/estimated-zika-virus-importations-to-europe-by-travellers-from-brazil
#14
Eduardo Massad, Ser-Han Tan, Kamran Khan, Annelies Wilder-Smith
BACKGROUND: Given the interconnectivity of Brazil with the rest of the world, Zika virus (ZIKV) infections have the potential to spread rapidly around the world via viremic travellers. The extent of spread depends on the travel volume and the endemicity in the exporting country. In the absence of reliable surveillance data, we did mathematical modelling to estimate the number of importations of ZIKV from Brazil into Europe. DESIGN: We applied a previously developed mathematical model on importations of dengue to estimate the number of ZIKV importations into Europe, based on the travel volume, the probability of being infected at the time of travel, the population size of Brazil, and the estimated incidence of ZIKV infections...
2016: Global Health Action
https://www.readbyqxmd.com/read/27157106/zika-virus-what-do-emergency-physicians-need-to-know
#15
Drew Long, Brit Long, Alex Koyfman
BACKGROUND: Zika virus currently dominates headlines, creating public fear due to its complications. With the ease of worldwide travel, this disease has spread rapidly to the U.S. OBJECTIVES: To provide physicians with an updated clinical review of the epidemiology, pathogenesis, diagnosis, management, and mimics of zika virus. DISCUSSION: This flavivirus is spread by the bite of the Aedes mosquito during daylight. The ease of worldwide travel has allowed the virus to spread to Mexico and the U...
June 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27097668/automatic-disease-screening-method-using-image-processing-for-dried-blood-microfluidic-drop-stain-pattern-recognition
#16
Basant S Sikarwar, Mukesh Roy, Priya Ranjan, Ayush Goyal
This paper examines programmed automatic recognition of infection from samples of dried stains of micro-scale drops of patient blood. This technique has the upside of being low-cost and less-intrusive and not requiring puncturing the patient with a needle for drawing blood, which is especially critical for infants and the matured. It also does not require expensive pathological blood test laboratory equipment. The method is shown in this work to be successful for ailment identification in patients suffering from tuberculosis and anaemia...
July 2016: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/27093860/the-global-spread-of-zika-virus-is-public-and-media-concern-justified-in-regions-currently-unaffected
#17
Narayan Gyawali, Richard S Bradbury, Andrew W Taylor-Robinson
BACKGROUND: Zika virus, an Aedes mosquito-borne flavivirus, is fast becoming a worldwide public health concern following its suspected association with over 4000 recent cases of microcephaly among newborn infants in Brazil. DISCUSSION: Prior to its emergence in Latin America in 2015-2016, Zika was known to exist at a relatively low prevalence in parts of Africa, Asia and the Pacific islands. An extension of its apparent global dispersion may be enabled by climate conditions suitable to support the population growth of A...
April 19, 2016: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/27056951/placental-transfer-of-dengue-virus-denv-specific-antibodies-and-kinetics-of-denv-infection-enhancing-activity-in-brazilian-infants
#18
Priscila M S Castanha, Cynthia Braga, Marli T Cordeiro, Ariani I Souza, Claudeir D Silva, Celina M T Martelli, Willem G van Panhuis, Eduardo J M Nascimento, Ernesto T A Marques
BACKGROUND: Maternal-fetal transferred dengue virus (DENV)-specific antibodies have been implicated in the immunopathogenesis of dengue during infancy. METHODS: A prospective birth cohort was established in a dengue-endemic area in the Northeast Region of Brazil. DENV-specific immunoglobulin G (IgG) and DENV-1-4 serotype-specific neutralizing antibody (NAb) levels were assessed in 376 paired maternal and umbilical cord blood samples. The kinetics of enhancing activity by maternally acquired DENV antibodies was determined in serum samples from children enrolled in the cohort...
July 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27022153/long-term-safety-and-immunogenicity-of-a-tetravalent-live-attenuated-dengue-vaccine-and-evaluation-of-a-booster-dose-administered-to-healthy-thai-children
#19
Veerachai Watanaveeradej, Sriluck Simasathien, Mammen P Mammen, Ananda Nisalak, Elodie Tournay, Phirangkul Kerdpanich, Rudiwilai Samakoses, Robert J Putnak, Robert V Gibbons, In-Kyu Yoon, Richard G Jarman, Rafael De La Barrera, Philippe Moris, Kenneth H Eckels, Stephen J Thomas, Bruce L Innis
We evaluated the safety and immunogenicity of two doses of a live-attenuated, tetravalent dengue virus vaccine (F17/Pre formulation) and a booster dose in a dengue endemic setting in two studies. Seven children (7- to 8-year-olds) were followed for 1 year after dose 2 and then given a booster dose (F17/Pre formulation), and followed for four more years (Child study). In the Infant study, 49 2-year-olds, vaccinated as infants, were followed for approximately 3.5 years after dose 2 and then given a booster dose (F17) and followed for one additional year...
June 1, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/26994509/re-emergence-of-zika-virus-a-review-on-pathogenesis-clinical-manifestations-diagnosis-treatment-and-prevention
#20
REVIEW
Waqas Shuaib, Hashim Stanazai, Ahmad G Abazid, Ahmed A Mattar
Zika virus (ZKV) is an arbovirus of the Flaviviridae family, which includes West Nile, dengue fever, yellow fever, and Japanese encephalitis virus. It is transmitted by the Aedes genus of mosquitoes. Before 2015, ZKV outbreaks occurred in areas of Africa, the Pacific Islands, and Southeast Asia. The current large outbreak, which began in Brazil, has also emerged throughout a large part of South/Central America, a number of islands in the Caribbean, including Puerto Rico, the Virgin Islands, and Mexico. A sudden rise in the numbers of infants reported born with microcephaly in Brazil, and the detection of the single-stranded positive RNA virus in the amniotic fluid of affected newborns, has captured medical, mainstream media, and global political attention, causing considerable concern in a post-Ebola global community considerably more focused on the threat of internationally transmissible diseases...
August 2016: American Journal of Medicine
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