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https://www.readbyqxmd.com/read/29751200/biosensor-based-selective-detection-of-zika-virus-specific-antibodies-in-infected-individuals
#1
Gustavo Cabral-Miranda, Ana R Cardoso, Luis C S Ferreira, M Goreti F Sales, Martin F Bachmann
Zika virus (ZIKV) recently emerged as a global threat subsequent to its global spread because it induces microencephaly and other brain damages in infants born to infected mothers. Epidemiological monitoring of infection has been hampered by the absence of reliable serological tests capable to distinguish between ZIKV and other Flavivirus infections, in particular Dengue virus (DENV). As both viruses are transmitted by the same mosquito-species, their distributions largely overlap and reliable serological distinction between the viruses is essential...
May 1, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29607328/maternal-fetal-and-neonatal-outcomes-in-pregnant-dengue-patients-in-mexico
#2
Carlos Machain-Williams, Eric Raga, Carlos M Baak-Baak, Sungmin Kiem, Bradley J Blitvich, Celso Ramos
To increase our understanding of the consequences of dengue virus infection during pregnancy, a retrospective analysis was performed on the medical records of all completed pregnancies (live births and pregnancy losses) at nine public hospitals in the Gulf of Mexico from January to October 2013. Eighty-two patients developed clinical, laboratory-confirmed dengue virus infections while pregnant. Of these, 54 (65.9%) patients were diagnosed with dengue without warning signs, 15 (18.3%) patients were diagnosed with dengue with warning signs, and 13 (15...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29593941/dynamics-of-zika-virus-outbreaks-an-overview-of-mathematical-modeling-approaches
#3
Anuwat Wiratsudakul, Parinya Suparit, Charin Modchang
Background: The Zika virus was first discovered in 1947. It was neglected until a major outbreak occurred on Yap Island, Micronesia, in 2007. Teratogenic effects resulting in microcephaly in newborn infants is the greatest public health threat. In 2016, the Zika virus epidemic was declared as a Public Health Emergency of International Concern (PHEIC). Consequently, mathematical models were constructed to explicitly elucidate related transmission dynamics. Survey Methodology: In this review article, two steps of journal article searching were performed...
2018: PeerJ
https://www.readbyqxmd.com/read/29543803/development-and-evaluation-of-a-novel-high-throughput-image-based-fluorescent-neutralization-test-for-detection-of-zika-virus-infection
#4
Andrea Cristine Koishi, Andréia Akemi Suzukawa, Camila Zanluca, Daria Elena Camacho, Guillermo Comach, Claudia Nunes Duarte Dos Santos
Zika virus (ZIKV) is an emerging arbovirus belonging to the genus flavivirus that comprises other important public health viruses, such as dengue (DENV) and yellow fever (YFV). In general, ZIKV infection is a self-limiting disease, however cases of Guillain-Barré syndrome and congenital brain abnormalities in newborn infants have been reported. Diagnosing ZIKV infection remains a challenge, as viral RNA detection is only applicable until a few days after the onset of symptoms. After that, serological tests must be applied, and, as expected, high cross-reactivity between ZIKV and other flavivirus serology is observed...
March 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29476066/vertical-transmission-of-the-zika-virus-causes-neurological-disorders-in-mouse-offspring
#5
Yingchao Shi, Shihua Li, Qian Wu, Le Sun, Junjing Zhang, Na Pan, Qihui Wang, Yuhai Bi, Jing An, Xuancheng Lu, George Fu Gao, Xiaoqun Wang
The association between Zika virus (ZIKV) infection and congenital malformations such as microcephaly in infants is a public health emergency. Although various in vivo and in vitro models are used for ZIKV research, few animal models are available for resolving the effects of maternal ZIKV infection on neonatal development. Here, we established an immunocompetent mouse model via intrauterine inoculation. Our results confirmed that ZIKV, but not dengue virus, infection caused spontaneous abortions, brain malformations, ocular abnormalities, spinal cord defects and paralysis in mouse offspring...
February 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29423037/the-structure-of-the-binary-methyltransferase-sah-complex-from-zika-virus-reveals-a-novel-conformation-for-the-mechanism-of-mrna-capping
#6
Chatrin Chatrin, Sandeep K Talapatra, Bruno Canard, Frank Kozielski
Zika virus, a flavivirus like Dengue and West Nile viruses, poses a significant risk as a pathogen in the category of emerging infectious diseases. Zika infections typically cause nonspecific, mild symptoms, but can also manifest as a neurological disorder like Guillain-Barré syndrome. Infection in pregnant women is linked to microcephaly in newborn infants. The methyltransferase domain of the non-structural protein 5 is responsible for two sequential methylations of the 5'-RNA cap. This is crucial for genome stability, efficient translation, and escape from the host immune response...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29386734/zika-an-enormous-public-health-challenge-for-a-miniscule-virus
#7
REVIEW
M S Mustafa, R Ramasethu
Zika virus (ZIKV) infection has recently affected 4 million people across the globe. The World Health Organization has declared Zika a "Public Health Emergency of International Concern". The disease is caused by an arbovirus and transmitted by Aedes mosquitoes. Zika has followed a pattern already set in by Dengue and Chikungunya viruses. The virus exists in sylvatic form with spillovers to humans. The present outbreak in Brazil started in May 2015 and spread rapidly to Latin America and the Caribbean...
January 2018: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/29338803/socio-demographic-inequalities-in-the-clinical-characteristics-of-dengue-haemorrhagic-fever-in-the-city-of-rio-de-janeiro-brazil-2007-2008
#8
Sheila Moura Pone, Yara Hahr Marques Hökerberg, Patricia Brasil, Cecília Carmen de Araújo Nicolai, Rogério Ferrari, Raquel de Vasconcellos Carvalhaes de Oliveira
In 2007-2008, the city of Rio de Janeiro underwent an epidemiological change, with increases in the incidence in children and in severe forms of dengue. To describe the clinical profile and spatial distribution of dengue we performed an ecological study based on dengue surveillance data using the Brazilian classification (2005): dengue fever, dengue haemorrhagic fever (DHF) and dengue with complications. χ 2 test was used to describe the clinical and socio-demographic variables (P < 0.05). Spatial distribution of incidence and case-fatality was explored with thematic maps, Moran and Geary indices (P < 0...
February 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29300893/virus-and-antibody-dynamics-in-travelers-with-acute-zika-virus-infection
#9
Luisa Barzon, Elena Percivalle, Monia Pacenti, Francesca Rovida, Maurizio Zavattoni, Paola Del Bravo, Anna Maria Cattelan, Giorgio Palù, Fausto Baldanti
Background: To improve our understanding of the natural history of Zika virus (ZIKV) infection in humans, we described the dynamics of ZIKV RNA shedding in different body fluids and antibody responses in patients with acute infection. Methods: Twenty-nine adults with travel-associated infection and 1 case of sexual transmission were enrolled and followed up with weekly ZIKV RNA testing in blood, urine, saliva, and semen samples and antibody testing. Results: ZIKV RNA was detected in plasma, urine, and saliva of 57%, 93...
April 3, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29146940/development-and-physiological-effects-of-an-artificial-diet-for-wolbachia-infected-aedes-aegypti
#10
Heverton Leandro Carneiro Dutra, Silvia Lomeu Rodrigues, Simone Brutman Mansur, Sofia Pimenta de Oliveira, Eric Pearce Caragata, Luciano Andrade Moreira
The endosymbiotic bacterium Wolbachia spreads rapidly through populations of Aedes aegypti mosquitoes, and strongly inhibits infection with key human pathogens including the dengue and Zika viruses. Mosquito control programs aimed at limiting transmission of these viruses are ongoing in multiple countries, yet there is a dearth of mass rearing infrastructure specific to Wolbachia-infected mosquitoes. One example is the lack of a blood meal substitute, which accounts for the Wolbachia-specific physiological changes in infected mosquitoes, that allows the bacterium to spread, and block viral infections...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29145452/behavioral-climatic-and-environmental-risk-factors-for-zika-and-chikungunya-virus-infections-in-rio-de-janeiro-brazil-2015-16
#11
Trevon L Fuller, Guilherme Calvet, Camila Genaro Estevam, Jussara Rafael Angelo, Gbenga J Abiodun, Umme-Aiman Halai, Bianca De Santis, Patricia Carvalho Sequeira, Eliane Machado Araujo, Simone Alves Sampaio, Marco Cesar Lima de Mendonça, Allison Fabri, Rita Maria Ribeiro, Ryan Harrigan, Thomas B Smith, Claudia Raja Gabaglia, Patrícia Brasil, Ana Maria Bispo de Filippis, Karin Nielsen-Saines
The burden of arboviruses in the Americas is high and may result in long-term sequelae with infants disabled by Zika virus infection (ZIKV) and arthritis caused by infection with Chikungunya virus (CHIKV). We aimed to identify environmental drivers of arbovirus epidemics to predict where the next epidemics will occur and prioritize municipalities for vector control and eventual vaccination. We screened sera and urine samples (n = 10,459) from residents of 48 municipalities in the state of Rio de Janeiro for CHIKV, dengue virus (DENV), and ZIKV by molecular PCR diagnostics...
2017: PloS One
https://www.readbyqxmd.com/read/29122384/strengthening-global-vaccine-access-for-adolescents-and-adults
#12
REVIEW
Angeline Nanni, Stefanie Meredith, Stephanie Gati, Karin Holm, Tom Harmon, Ann Ginsberg
Global immunization efforts to date have heavily focused on infants and children, with noted success on public health. Healthy adolescents and adults contribute to the economic growth and development of countries but efforts to ensure vaccine coverage for these groups receive inadequate global attention and resources. Emerging epidemics for a number of infectious diseases including Ebola, Zika, dengue, malaria and the continuing epidemics of tuberculosis and several sexually transmitted infections, including HIV, HPV and Hepatitis B, have high incidence and prevalence in adolescents and adults...
December 14, 2017: Vaccine
https://www.readbyqxmd.com/read/29118655/the-burden-of-dengue-source-reduction-measures-and-serotype-patterns-in-myanmar-2011-to-2015-r2
#13
Pwint Mon Oo, Khin Thet Wai, Anthony D Harries, Hemant Deepak Shewade, Tin Oo, Aung Thi, Zaw Lin
Background: Myanmar is currently classified as a high burden dengue country in the Asian Pacific region. The Myanmar vector-borne diseases control (VBDC) program has collected data on dengue and source reduction measures since 1970, and there is a pressing need to collate, analyze, and interpret this information. The aim of this study was to describe the burden of hospital-based dengue disease, dengue control measures, and serotype patterns in Myanmar between 2011 and 2015. Methods: This was a cross-sectional study using annual records from the Dengue Fever/Dengue Hemorrhagic Fever Prevention and Control Project in Myanmar...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/29044149/development-and-evaluation-of-a-rapid-molecular-diagnostic-test-for-zika-virus-infection-by-reverse-transcription-loop-mediated-isothermal-amplification
#14
Yohei Kurosaki, Danyelly Bruneska Gondim Martins, Mayuko Kimura, Andriu Dos Santos Catena, Maria Amélia Carlos Souto Maior Borba, Sandra da Silva Mattos, Haruka Abe, Rokusuke Yoshikawa, José Luiz de Lima Filho, Jiro Yasuda
The recent outbreak of Zika virus (ZIKV) disease caused an enormous number of infections in Central and South America, and the unusual increase in the number of infants born with microcephaly associated with ZIKV infection aroused global concern. Here, we developed a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay using a portable device for the detection of ZIKV. The assay specifically detected ZIKV strains of both Asian and African genotypes without cross-reactivity with other arboviruses, including Dengue and Chikungunya viruses...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28975470/infections-of-the-central-nervous-system-in-returning-travelers-and-immigrants
#15
REVIEW
Haley Thompson, Kiran Thakur
PURPOSE OF REVIEW: This review highlights current knowledge in travel-related neuroinfectious diseases, providing insight on approaches to prevention, diagnosis, and treatment of infections of the central nervous system (CNS) in travelers and immigrants. RECENT FINDINGS: Updates on travel vaccine recommendations including vaccine-specific interactions with immunosuppressive agents, advances in Zika virus and dengue virus vaccine development, new diagnostic criteria for neurocysticercosis, updates on treatment approaches for tuberculosis meningitis...
October 3, 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28903515/update-from-the-advisory-committee-on-immunization-practices
#16
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
#17
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...
December 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28835502/cd8-t-cell-immune-response-in-immunocompetent-mice-during-zika-virus-infection
#18
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 causees neurologic complications, including Guillain-Barré syndrome in adults and central nervous system (CNS) abnormalities in fetuses. We investigated the immune response, especially the CD8(+) T cell response in C57BL/6 (B6) wild-type (WT) mice, during ZIKV infection. We found that a robust CD8(+) T cell response was elicited, major histocompatibility complex class I-restricted CD8(+) T cell epitopes were identified, a tetramer that recognizes ZIKV-specific CD8(+) T cells was developed, and virus-specific memory CD8(+) T cells were generated in these mice...
November 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28798927/is-dengue-emerging-as-important-cause-of-acute-liver-failure-in-endemic-regions
#19
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
#20
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...
August 26, 2017: Lancet
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