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https://www.readbyqxmd.com/read/28903515/update-from-the-advisory-committee-on-immunization-practices
#1
Sean T O'Leary, Yvonne A Maldonado, Carrie L Byington
The Advisory Committee on Immunization Practices (ACIP), a group of medical and public health experts, meets 3 times per year to develop recommendations for vaccine use in the United States. The group has 15 voting members, and each member's term is 4 years. ACIP members and Centers for Disease Control and Prevention (CDC) staff discuss the epidemiology of vaccine-preventable diseases and vaccine research, effectiveness, safety data, and clinical trial results. Representatives from the American Academy of Pediatrics (C...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28887788/the-clinical-and-serological-profile-of-pediatric-dengue
#2
Sujatha Ramabhatta, Saravanan Palaniappan, Navya Hanumantharayappa, Shaik Vajidunnisa Begum
OBJECTIVE: To classify suspected dengue into dengue, dengue with warning signs and severe dengue, based on clinical features as per the revised WHO guidelines with special emphasis on serology. METHODS: It was a prospective cross-sectional study for five years from 2011-2016 in a tertiary care medical college hospital in Bangalore. All cases of fever of three to five days duration with symptoms like dengue were enrolled for the study. They were categorized into three groups as per the Revised WHO 2012 criteria...
September 8, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28835502/cd8-t-cell-immune-response-in-immunocompetent-mice-during-zika-virus-infection
#3
Huarong Huang, Shihua Li, Yongli Zhang, Xiaojuan Han, Baoqian Jia, Hongtao Liu, Dandan Liu, Shuguang Tan, Qihui Wang, Yuhai Bi, William J Liu, Baidong Hou, George Fu Gao, Fuping Zhang
Zika virus (ZIKV) infection cause neurologic complications, including Guillain-Barré syndrome (GBS) in adults and central nerve system (CNS) abnormalities in fetuses. We investigated the immune response, especially CD8(+) T cell response in C57BL/6 (B6) wild type (WT) mouse during ZIKV infection. We found that robust CD8(+) T cell response was elicited, MHC-I restricted CD8(+) T cell epitopes were identified and a tetramer that recognized ZIKV specific CD8(+) T cells was developed. Finally, virus specific memory CD8(+) T cells were generated in these mice...
August 23, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28798927/is-dengue-emerging-as-important-cause-of-acute-liver-failure-in-endemic-regions
#4
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/28647172/infection-related-microcephaly-after-the-2015-and-2016-zika-virus-outbreaks-in-brazil-a-surveillance-based-analysis
#5
Wanderson Kleber de Oliveira, Giovanny Vinícius Araújo de França, Eduardo Hage Carmo, Bruce Bartholow Duncan, Ricardo de Souza Kuchenbecker, Maria Inês Schmidt
BACKGROUND: On Nov 11, 2015, the Brazilian Ministry of Health declared a Public Health Emergency of National Concern in response to an increased number of microcephaly cases, possibly related to previous Zika virus outbreaks. We describe the course of the dual epidemics of the Zika virus infection during pregnancy and microcephaly in Brazil up to Nov 12, 2016, the first anniversary of this declaration. METHODS: We used secondary data for Zika virus and microcephaly cases obtained through the Brazilian Ministry of Health's surveillance systems from Jan 1, 2015, to Nov 12, 2016...
June 21, 2017: Lancet
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
#6
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/28542662/-dengue-with-unusual-clinical-features-in-an-infant-case-report
#7
Nina Méndez-Domínguez, Kikey Achach-Medina, Yareni María Morales-Gual, Salvador Gómez-Carro
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...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28535184/maternal-zika-virus-disease-severity-virus-load-prior-dengue-antibodies-and-their-relationship-to-birth-outcomes
#8
Umme-Aiman Halai, Karin Nielsen-Saines, Maria Lopes Moreira, Patricia Carvalho de Sequeira, Jose Paulo Pereira Junior, Andrea de Araujo Zin, James Cherry, Claudia Raja Gabaglia, Stephanie L Gaw, Kristina Adachi, Irena Tsui, Jose Henrique Pilotto, Rita Ribeiro Nogueira, Ana Maria Bispo de Filippis, Patricia Brasil
Background: Congenital Zika virus (ZIKV) syndrome is a newly identified condition resulting from infection during pregnancy. We analyzed outcome data from a mother-infant cohort in Rio de Janeiro in order to assess whether clinical severity of maternal ZIKV infection was associated with maternal virus load, prior dengue antibodies, or abnormal pregnancy/infant outcomes. Methods: A clinical severity assessment tool was developed based on duration of fever, severity of rash, multisystem involvement, and duration of symptoms during ZIKV infection...
September 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28525510/zika-virus-obstetric-and-pediatric-anesthesia-considerations
#9
Jacqueline L Tutiven, Benjamin T Pruden, James S Banks, Mario Stevenson, David J Birnbach
As of November 2016, the Florida Department of Health (FDH) and the Centers for Disease Control and Prevention have confirmed more than 4000 travel-related Zika virus (ZIKV) infections in the United States with >700 of those in Florida. There have been 139 cases of locally acquired infection, all occurring in Miami, Florida. Within the US territories (eg, Puerto Rico, US Virgin Islands), >30,000 cases of ZIKV infection have been reported. The projected number of individuals at risk for ZIKV infection in the Caribbean and Latin America approximates 5 million...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28116673/preventive-and-therapeutic-challenges-in-combating-zika-virus-infection-are-we-getting-any-closer
#10
REVIEW
Meera V Singh, Emily A Weber, Vir B Singh, Nicole E Stirpe, Sanjay B Maggirwar
The neuroteratogenic nature of Zika Virus (ZIKV) infection has converted what would have been a tropical disease into a global threat. Zika is transmitted vertically via infected placental cells especially in the first and second trimesters. In the developing central nervous system (CNS), ZIKV can infect and induce apoptosis of neural progenitor cells subsequently causing microcephaly as well as other neuronal complications in infants. Its ability to infect multiple cell types (placental, dermal, and neural) and increased environmental stability as compared to other flaviviruses (FVs) has broadened the transmission routes for ZIKV infection from vector-mediated to transmitted via body fluids...
June 2017: Journal of Neurovirology
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
#11
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
#12
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 is 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...
June 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/27775637/zika-virus-infection-and-microcephaly-evidence-for-a-causal-link
#13
REVIEW
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
#14
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
#15
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...
April 2017: 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
#16
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
#17
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
#18
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
#19
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
#20
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
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