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https://www.readbyqxmd.com/read/28758222/mitigation-of-the-threat-posed-to-transfusion-by-donors-traveling-to-zika-affected-areas-a-canadian-risk-based-approach
#1
Marc Germain, Gilles Delage, Sheila F O'Brien, Yves Grégoire, Margaret Fearon, Dana Devine
BACKGROUND: The recent spread of the Zika virus to the Americas and the recognition that it can cause severe disease in the developing fetus has prompted the adoption of measures to mitigate the risk that this virus might pose to transfusion safety. In nonendemic countries, the risk to transfusion results from donors traveling to an endemic region. Canada implemented a 21-day temporary deferral for prospective donors who traveled to such regions. We present the rationale for this policy, including a quantitative risk assessment supported by a Monte Carlo simulation...
July 31, 2017: Transfusion
https://www.readbyqxmd.com/read/28716770/data-preparation-for-west-nile-virus-agent-based-modelling-protocol-for-processing-bird-population-estimates-and-incorporating-arcmap-in-anylogic
#2
Hamid Reza Nasrinpour, Alexander A Reimer, Marcia R Friesen, Robert D McLeod
BACKGROUND: West Nile Virus (WNV) was first isolated in 1937. Since the 1950s, many outbreaks have occurred in various countries. The first appearance of infected birds in Manitoba, Canada was in 2002. OBJECTIVE: This paper describes the data preparation phase of setting up a geographic information system (GIS) simulation environment for WNV Agent-Based Modelling in Manitoba. METHODS: The main technology used in this protocol is based on AnyLogic and ArcGIS software...
July 17, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28676560/congenital-microcephaly-in-quebec-baseline-prevalence-risk-factors-and-outcomes-in-a-large-cohort-of-neonates
#3
Nathalie Auger, Caroline Quach, Jessica Healy-Profitós, Anne-Marie Lowe, Laura Arbour
OBJECTIVE: We assessed baseline prevalence, risk factors and outcomes of microcephaly in a large population of neonates. DESIGN: Retrospective cohort study. SETTING: All hospitals in the province of Quebec, Canada. PARTICIPANTS: 794 microcephalic and 1 944 010 non-microcephalic infants born between 1989 and 2012. MAIN OUTCOME MEASURES: Baseline prevalence of microcephaly and occurrence of other congenital anomalies...
July 4, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28566316/evaluation-of-euroimmun-anti-zika-virus-igm-and-igg-enzyme-linked-immunosorbent-assays-for-zika-virus-serologic-testing
#4
Arnaud G L'Huillier, Anne Hamid-Allie, Erik Kristjanson, Louis Papageorgiou, Sam Hung, Chun Fai Wong, Derek R Stein, Romy Olsha, Lee W Goneau, Kristina Dimitrova, Mike Drebot, David Safronetz, Jonathan B Gubbay
With the emerging Zika virus (ZIKV) epidemic, serologic diagnosis relies on a labor-intensive IgM antibody capture enzyme-linked immunosorbent assay (MAC-ELISA) and confirmation by a plaque reduction neutralization test (PRNT). To streamline serologic testing, several commercial assays have been developed. Our aim was to compare the commercial Euroimmun anti-ZIKV IgM and IgG assays to the reference MAC-ELISA and PRNT currently in use. Serum specimens submitted to Public Health Ontario Laboratory, Canada, were tested for IgM and IgG using the Euroimmun assays and the results were compared with those from MAC-ELISA...
August 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28339472/vector-status-of-aedes-species-determines-geographical-risk-of-autochthonous-zika-virus-establishment
#5
Lauren Gardner, Nan Chen, Sahotra Sarkar
BACKGROUND: The 2015-16 Zika virus pandemic originating in Latin America led to predictions of a catastrophic global spread of the disease. Since the current outbreak began in Brazil in May 2015 local transmission of Zika has been reported in over 60 countries and territories, with over 750 thousand confirmed and suspected cases. As a result of its range expansion attention has focused on possible modes of transmission, of which the arthropod vector-based disease spread cycle involving Aedes species is believed to be the most important...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28298448/evaluation-of-altona-diagnostics-realstar-zika-virus-reverse-transcription-pcr-test-kit-for-zika-virus-pcr-testing
#6
Arnaud G L'Huillier, Ernesto Lombos, Elaine Tang, Stephen Perusini, Alireza Eshaghi, Sandeep Nagra, Christine Frantz, Romy Olsha, Erik Kristjanson, Kristina Dimitrova, David Safronetz, Mike Drebot, Jonathan B Gubbay
With the emerging Zika virus (ZIKV) epidemic, accessible real-time reverse transcription-PCR (rRT-PCR) assays are needed to streamline testing. The commercial Altona Diagnostics RealStar ZIKV rRT-PCR test kit (Altona PCR) has been approved for emergency use authorization by the U.S. FDA. Our aim was to verify the Altona PCR by comparing it to the CDC-designed dual-target ZIKV rRT-PCR reference assay (reference PCR) and describe the demographics of patients tested for ZIKV by rRT-PCR in Ontario, Canada. A large set of clinical specimens was tested for ZIKV by the Altona PCR and the reference PCR...
May 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28253995/policy-making-for-vaccine-use-as-a-driver-of-vaccine-innovation-and-development-in-the-developed-world
#7
REVIEW
Katherine Seib, Andrew J Pollard, Philippe de Wals, Ross M Andrews, Fangjun Zhou, Richard J Hatchett, Larry K Pickering, Walter A Orenstein
In the past 200years, vaccines have had unmistakable impacts on public health including declines in morbidity and mortality, most markedly in economically-developed countries. Highly engineered vaccines including vaccines for conditions other than infectious diseases are expected to dominate future vaccine development. We examine immunization vaccine policy as a driver of vaccine innovation and development. The pathways to recommendation for use of licensed vaccines in the US, UK, Canada and Australia have been similar, including: expert review of disease epidemiology, disease burden and severity; vaccine immunogenicity, efficacy and safety; programmatic feasibility; public demand; and increasingly cost-effectiveness...
March 7, 2017: Vaccine
https://www.readbyqxmd.com/read/27893080/travel-associated-zika-virus-disease-acquired-in-the-americas-through-february-2016-a-geosentinel-analysis
#8
Davidson H Hamer, Kira A Barbre, Lin H Chen, Martin P Grobusch, Patricia Schlagenhauf, Abraham Goorhuis, Perry J J van Genderen, Israel Molina, Hilmir Asgeirsson, Phyllis E Kozarsky, Eric Caumes, Stefan H Hagmann, Frank P Mockenhaupt, Gilles Eperon, Elizabeth D Barnett, Emmanuel Bottieau, Andrea K Boggild, Philippe Gautret, Noreen A Hynes, Susan Kuhn, R Ryan Lash, Karin Leder, Michael Libman, Denis J M Malvy, Cecilia Perret, Camilla Rothe, Eli Schwartz, Annelies Wilder-Smith, Martin S Cetron, Douglas H Esposito
Background: Zika virus has spread rapidly in the Americas and has been imported into many nonendemic countries by travelers. Objective: To describe clinical manifestations and epidemiology of Zika virus disease in travelers exposed in the Americas. Design: Descriptive, using GeoSentinel records. Setting: 63 travel and tropical medicine clinics in 30 countries. Patients: Ill returned travelers with a confirmed, probable, or clinically suspected diagnosis of Zika virus disease seen between January 2013 and 29 February 2016...
January 17, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27853521/zika-mosquito-vectors-the-jury-is-still-out
#9
Walter S Leal
After a 40-year hiatus, the International Congress of Entomology (ICE 2016) convened in Orlando, Florida (September 25-30, 2016). One of the symposia at ICE 2016, the Zika Symposium, covered multiple aspects of the Zika epidemic, including epidemiology, sexual transmission, genetic tools for reducing transmission, and particularly vector competence. While there was a consensus among participants that the yellow fever mosquito, Aedes aegypti, is a vector of the Zika virus, there is growing evidence indicating that the range of mosquito vectors might be wider than anticipated...
2016: F1000Research
https://www.readbyqxmd.com/read/27788336/zika-and-the-blood-supply-a-work-in-progress
#10
Louis M Katz, Susan N Rossmann
Zika virus can be transmitted by transfusion, but the harm caused to recipients is not clear in most cases. It is very likely that the virus could also be transmitted by transplanted organs. Sensitivity to the risk from transfusion is elevated by consideration of possible severe neurologic damage in fetuses. Strategies for dealing with transfusion risk vary with the presence of Zika in the region. In nonendemic areas, risks can be reduced by excluding donors who have exposure through travel or sexual contact with someone at risk...
January 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27312324/prevention-and-control-of-zika-as-a-mosquito-borne-and-sexually-transmitted-disease-a-mathematical-modeling-analysis
#11
Daozhou Gao, Yijun Lou, Daihai He, Travis C Porco, Yang Kuang, Gerardo Chowell, Shigui Ruan
The ongoing Zika virus (ZIKV) epidemic in the Americas poses a major global public health emergency. While ZIKV is transmitted from human to human by bites of Aedes mosquitoes, recent evidence indicates that ZIKV can also be transmitted via sexual contact with cases of sexually transmitted ZIKV reported in Argentina, Canada, Chile, France, Italy, New Zealand, Peru, Portugal, and the USA. Yet, the role of sexual transmission on the spread and control of ZIKV infection is not well-understood. We introduce a mathematical model to investigate the impact of mosquito-borne and sexual transmission on the spread and control of ZIKV and calibrate the model to ZIKV epidemic data from Brazil, Colombia, and El Salvador...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27270120/canada-s-support-lags-for-research-on-zika
#12
Miriam Shuchman
No abstract text is available yet for this article.
July 12, 2016: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/26978815/-zika-virus-ancient-virus-gets-new-life-in-a-new-ecosystem-microcephaly-and-guillain-barre-syndrome-are-possible-consequences-when-there-is-no-background-herd-immunity-in-the-population
#13
Björn Olsen, Åke Lundkvist
Zika virus is a mosquito-borne flavivirus transmitted by Aedes mosquitos. The virus was discovered in 1947 in the Zika forest in Uganda. Symptomatic disease is usually mild and is characterized by maculopapular rash, headache, fever, arthralgia and conjunctivitis. Fatalities are rare. There is neither vaccine nor curative treatment available. In May 2015, the first observation of local virus transmission was reported from Brazil. During the expanding outbreak in the Americas, Zika virus infection has been associated with microcephaly in newborn and fetal losses in women infected with Zika virus during pregnancy...
March 10, 2016: Läkartidningen
https://www.readbyqxmd.com/read/25294619/first-case-of-zika-virus-infection-in-a-returning-canadian-traveler
#14
Kevin Fonseca, Bonnie Meatherall, Danielle Zarra, Michael Drebot, Judy MacDonald, Kanti Pabbaraju, Sallene Wong, Patricia Webster, Robbin Lindsay, Raymond Tellier
A woman who recently traveled to Thailand came to a local emergency department with a fever and papular rash. She was tested for measles, malaria, and dengue. Positive finding for IgM antibody against dengue and a failure to seroconvert for IgG against dengue for multiple blood samples suggested an alternate flavivirus etiology. Amplification of a conserved region of the non-structural protein 5 gene of the genus Flavivirus yielded a polymerase chain reaction product with a matching sequence of 99% identity with Zika virus...
November 2014: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/5098424/the-comparison-of-the-w-170-values-during-growth
#15
M Mácek, J Vávra, K Zíka
No abstract text is available yet for this article.
June 1971: Journal of Sports Medicine and Physical Fitness
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