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https://www.readbyqxmd.com/read/28921542/pathogen-inactivation-of-dengue-virus-in-red-blood-cells-using-amustaline-and-glutathione
#1
Maite Aubry, Andrew Laughhunn, Felicia Santa Maria, Marion C Lanteri, Adonis Stassinopoulos, Didier Musso
BACKGROUND: Dengue virus (DENV) is an arbovirus primarily transmitted through mosquito bite; however, DENV transfusion-transmitted infections (TTIs) have been reported and asymptomatic DENV RNA-positive blood donors have been identified in endemic countries. DENV is considered a high-risk pathogen for blood safety. One of the mitigation strategies to prevent arbovirus TTIs is pathogen inactivation. In this study we demonstrate that the amustaline and glutathione (S-303/GSH) treatment previously found effective against Zika virus in red blood cells (RBCs) is also effective in inactivating DENV...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28919592/the-study-on-the-lives-and-health-conditions-of-internees-in-santo-thomas-camp-of-philippines-based-on-mcanlis-s-the-war-in-manila-1941-1945
#2
Jueyeon Lee, Youngsoo Cho
When Japan invaded the Philippines, two missionary dentists (Dr. McAnlis and Dr. Boots) who were forced to leave Korea were captured and interned in the Santo Thomas camp in Manila. Japan continued to bombard and plunder the Philippines in the wake of the Pacific War following the Great East Asia policy, leading to serious inflation and material deficiency. More than 4,000 Allied citizens held in Santo Thomas camp without basic food and shelter. Santo Thomas Camp was equipped with the systems of the Japanese military medical officers and Western doctors of captivity based on the Geneva Conventions(1929)...
August 2017: Ŭi Sahak
https://www.readbyqxmd.com/read/28903515/update-from-the-advisory-committee-on-immunization-practices
#3
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/28902276/first-detection-of-dengue-and-chikungunya-viruses-in-natural-populations-of-aedes-aegypti-in-martinique-during-the-2013-2015-concomitant-outbreak
#4
Laurence Farraudière, Fabrice Sonor, Said Crico, Manuel Étienne, Laurence Mousson, Rodolphe Hamel, Dorothée Missé, Anna-Bella Failloux, Frédéric Simard, André Yébakima
Dengue and chikungunya viruses are transmitted by Aedes mosquitoes. In Martinique, an island of the French West Indies, Aedes aegypti is the suspected vector of both arboviruses; there is no Aedes albopictus on the island. During the concomitant outbreak of 2013 - 2015, the authors collected wild A. aegypti populations, and for the first time, detected dengue and chikungunya viruses in field-collected females. This paper demonstrates the mosquito's role in transmission of both dengue and chikungunya on the island, and also highlights a tool that public health authorities can use for preventing outbreaks...
August 21, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28902274/chikungunya-virus-outbreak-in-sint-maarten-2013-2014
#5
Maria Henry, Lorraine Francis, Virginia Asin, Karen Polson-Edwards, Babatunde Olowokure
This report describes the outbreak of chikungunya virus (CHIKV) in Sint Maarten, a constituent country of Kingdom of the Netherlands comprising the southern part of the Caribbean island of Saint Martin, from 22 December 2013 (first reported case) through 5 December 2014. The outbreak was first reported by the French overseas collectivity of Saint-Martin in the northern part of the island-the first site in the Americas to report autochthonous transmission of CHIKV. By 5 December 2014, Sint Maarten had reported a total of 658 cases-an overall attack rate of 1...
August 21, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28892499/effectiveness-and-economic-assessment-of-routine-larviciding-for-prevention-of-chikungunya-and-dengue-in-temperate-urban-settings-in-europe
#6
Giorgio Guzzetta, Filippo Trentini, Piero Poletti, Frederic Alexandre Baldacchino, Fabrizio Montarsi, Gioia Capelli, Annapaola Rizzoli, Roberto Rosà, Stefano Merler, Alessia Melegaro
In the last decades, several European countries where arboviral infections are not endemic have faced outbreaks of diseases such as chikungunya and dengue, initially introduced by infectious travellers from tropical endemic areas and then spread locally via mosquito bites. To keep in check the epidemiological risk, interventions targeted to control vector abundance can be implemented by local authorities. We assessed the epidemiological effectiveness and economic costs and benefits of routine larviciding in European towns with temperate climate, using a mathematical model of Aedes albopictus populations and viral transmission, calibrated on entomological surveillance data collected from ten municipalities in Northern Italy during 2014 and 2015...
September 11, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28889137/perforated-gastric-ulcer-in-severe-dengue-infection-a-case-report
#7
C Y Ng, S L Lee, S L Foo
Abdominal pain is one of the common presentations in severe dengue infection. We report a rare case of perforated gastric ulcer in a young man diagnosed with severe dengue infection and the challenges we faced in managing this patient. Perforated gastric ulcer need to be considered if there are signs of peritonitis and persistent abdominal pain that does not conform to the natural history of dengue. Proper imaging and early surgical intervention in perforated gastric ulcer is vital in preventing further complication and reducing the risk of mortality...
August 2017: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28883973/vectored-immunoprophylaxis-an-emerging-adjunct-to-traditional-vaccination
#8
REVIEW
John W Sanders, Todd A Ponzio
The successful development of effective vaccines has been elusive for many of the world's most important infectious diseases. Additionally, much of the population, such as the aged or immunocompromised, are unable to mount an effective immunologic response for existing vaccines. Vectored Immunoprophylaxis (VIP) is a novel approach designed to address these challenges. Rather than utilizing an antigen to trigger a response from the host's immune system as is normally done with traditional vaccines, VIP genetically engineers the production of tailored antibodies from non-hematopoietic cells, bypassing the humoral immune system...
2017: Tropical Diseases, Travel Medicine and Vaccines
https://www.readbyqxmd.com/read/28877637/ghost-probiotics-with-a-combined-regimen-a-novel-therapeutic-approach-against-the-zika-virus-an-emerging-world-threat
#9
Vivek K Bajpai, Vishal Chandra, Na-Hyung Kim, Rajni Rai, Pradeep Kumar, Kangmin Kim, Abhinav Aeron, Sun Chul Kang, D K Maheshwari, MinKyun Na, Irfan A Rather, Yong-Ha Park
The Zika virus (ZIKV) used to be an obscure flavivirus closely related to dengue virus (DENV). Transmission of this epidemic pathogen occurs mainly via mosquitoes, but it is also capable of placental and sexual transmission. Although the characteristics of these viruses are well defined, infections are unpredictable in terms of disease severity, unusual clinical manifestations, unexpected methods of transmission, long-term persistence, and the development of new strains. Recently, ZIKV has gained huge medical attention following the large-scale epidemics around the world, and reported cases of congenital abnormalities associated with Zika virus infections which have created a public health emergency of international concern...
September 7, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28873408/-we-need-people-to-collaborate-together-against-this-disease-a-qualitative-exploration-of-perceptions-of-dengue-fever-control-in-caregivers-of-children-under-5-years-in-the-peruvian-amazon
#10
Amy L Frank, Emily R Beales, Gilles de Wildt, Graciela Meza Sanchez, Laura L Jones
BACKGROUND: Dengue Fever presents a significant and growing burden of disease to endemic countries, where children are at particular risk. Worldwide, no effective anti-viral treatment has been identified, thus vector control is key for disease prevention, particularly in Peru where no vaccine is currently available. This qualitative study aimed to explore the perceptions of dengue control in caregivers' of children under 5 years in Peru, to help direct future mosquito control programmes and strategy...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28859087/community-effectiveness-of-indoor-spraying-as-a-dengue-vector-control-method-a-systematic-review
#11
REVIEW
Moody Samuel, Dorit Maoz, Pablo Manrique, Tara Ward, Silvia Runge-Ranzinger, Joao Toledo, Ross Boyce, Olaf Horstick
BACKGROUND: The prevention and control of dengue rely mainly on vector control methods, including indoor residual spraying (IRS) and indoor space spraying (ISS). This study aimed to systematically review the available evidence on community effectiveness of indoor spraying. METHODS: A systematic review was conducted using seven databases (PubMed, EMBASE, LILACS, Web of Science, WHOLIS, Cochrane, and Google Scholar) and a manual search of the reference lists of the identified studies...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28836477/antithrombocytopenic-and-immunomodulatory-potential-of-metabolically-characterized-aqueous-extract-of-carica-papaya-leaves
#12
Varisha Anjum, Poonam Arora, Shahid Husain Ansari, Abul Kalam Najmi, Sayeed Ahmad
CONTEXT: Carica papaya Linn. (Caricaceae) leaf (CPL) juice has long been traditionally used in ethnomedicine for dengue fever. OBJECTIVE: The study examines the effects of standardized CPL aqueous extract (SCPLE) on platelet count, extramedullary haematopoiesis (EMH), and immunomodulation in cyclophosphamide (CP)-induced animal model of thrombocytopenia. MATERIALS AND METHODS: The extract was analyzed for myricetin, caffeic acid, trans-ferulic acid, and kaempferol using HPTLC for standardization followed by UPLC-qTOF/MS fingerprinting for metabolite signature...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28835708/exploring-dengue-genome-to-construct-a-multi-epitope-based-subunit-vaccine-by-utilizing-immunoinformatics-approach-to-battle-against-dengue-infection
#13
Mudassar Ali, Rajan Kumar Pandey, Nazia Khatoon, Aruna Narula, Amit Mishra, Vijay Kumar Prajapati
Dengue is considered as a major health issue which causes a number of deaths worldwide each year; tropical countries are majorly affected by dengue outbreaks. It is considered as life threatening issue because, since many decades not a single effective approach for treatment and prevention of dengue has been developed. Therefore, to find new preventive measure, we used immunoinformatics approaches to develop a multi-epitope based subunit vaccine for dengue which can generate various immune responses inside the host...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28820712/scrub-typhus-as-an-etiology-of-acute-febrile-illness-in-gorakhpur-uttar-pradesh-india-2016
#14
Jeromie Wesley Vivian Thangraj, Mahima Mittal, Valsan Philip Verghese, C P Girish Kumar, Winsley Rose, R Sabarinathan, Ashok Kumar Pandey, Nivedita Gupta, Manoj Murhekar
Seasonal outbreaks of acute encephalitis syndrome (AES) with high mortality occur every year in Gorakhpur region of Uttar Pradesh, India. Earlier studies indicated the role of scrub typhus as the important etiology of AES in the region. AES cases were hospitalized late in the course of their illness. We established surveillance for acute febrile illness (AFI) (fever ≥ 4 days duration) in peripheral health facilities in Gorakhpur district to understand the relative contribution of scrub typhus. Of the 224 patients enrolled during the 3-month period corresponding to the peak of AES cases in the region, about one-fifth had immunoglobulin M (IgM) antibodies against Orientia tsutsugamushi...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820690/scaling-up-of-an-innovative-intervention-to-reduce-risk-of-dengue-chikungunya-and-zika-transmission-in-uruguay-in-the-framework-of-an-intersectoral-approach-with-and-without-community-participation
#15
César Basso, Elsa García da Rosa, Rosario Lairihoy, Ruben M Caffera, Ingrid Roche, Cristina González, Ricardo da Rosa, Alexis Gularte, Eduardo Alfonso-Sierra, Max Petzold, Axel Kroeger, Johannes Sommerfeld
To contribute to the prevention of dengue, chikungunya, and Zika, a process of scaling up an innovative intervention to reduce Aedes aegypti habitats, was carried out in the city of Salto (Uruguay) based on a transdisciplinary analysis of the eco-bio-social determinants. The intervention in one-third of the city included the distributions of plastic bags for all households to collect all discarded water containers that were recollected by the Ministry of Health and the Municipality vector control services. The results were evaluated in 20 randomly assigned clusters of 100 households each, in the intervention and control arm...
August 7, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28817080/feasibility-study-of-an-optical-caustic-plasmonic-light-scattering-sensor-for-human-serum-anti-dengue-protein-e-antibody-detection
#16
Antonio A García, Lina S Franco, Miguel A Pirez-Gomez, José L Pech-Pacheco, Jorge F Mendez-Galvan, Carlos Machain-Williams, Lourdes Talavera-Aguilar, José H Espinosa-Carrillo, Miriam M Duarte-Villaseñor, Christian Be-Ortiz, Luz E Espinosa-de Los Monteros, Ariel Castillo-Pacheco, Julian E Garcina-Rejon
Antibody detection and accurate diagnosis of tropical diseases is essential to help prevent the spread of disease. However, most detection methods lack cost-effectiveness and field portability, which are essential features for achieving diagnosis in a timely manner. To address this, 3D-printed oblate spheroid sample chambers were fabricated to measure green light scattering of gold nanoparticles using an optical caustic focus to detect antibodies. Scattering signals of 20-200 nm gold nanoparticles using a green laser were compared to green light emitting diode (LED) light source signals and to Mie theory...
August 17, 2017: Diagnostics
https://www.readbyqxmd.com/read/28798738/zika-virus-an-emerging-worldwide-threat
#17
Irfan A Rather, Jameel B Lone, Vivek K Bajpai, Woon K Paek, Jeongheui Lim
ZIKA virus (ZIKV) poses a severe threat to the world. Recent outbreaks of ZIKV after 2007 along with its quick transmission have made this virus a matter of international concern. The virus shows symptoms that are similar to those caused in the wake of dengue virus (DENV) and other flaviviruses, which makes it difficult to discern the viral infection. Diagnosis is further complicated as the virus cross-reacts with antibodies of other viruses. Currently, molecular diagnosis of the virus is being performed by RT-PCR and IgM-captured enzyme-linked immunosorbent assay (MAC-ELISA)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28791258/prevention-and-control-strategies-to-counter-dengue-virus-infection
#18
REVIEW
Irfan A Rather, Hilal A Parray, Jameel B Lone, Woon K Paek, Jeongheui Lim, Vivek K Bajpai, Yong-Ha Park
Dengue is currently the highest and rapidly spreading vector-borne viral disease, which can lead to mortality in its severe form. The globally endemic dengue poses as a public health and economic challenge that has been attempted to suppress though application of various prevention and control techniques. Therefore, broad spectrum techniques, that are efficient, cost-effective, and environmentally sustainable, are proposed and practiced in dengue-endemic regions. The development of vaccines and immunotherapies have introduced a new dimension for effective dengue control and prevention...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28772262/evolution-and-emergence-of-pathogenic-viruses-past-present-and-future
#19
Mohammad K Parvez, Shama Parveen
Incidences of emerging/re-emerging deadly viral infections have significantly affected human health despite extraordinary progress in the area of biomedical knowledge. The best examples are the recurring outbreaks of dengue and chikungunya fever in tropical and sub-tropical regions, the recent epidemic of Zika in the Americas and the Caribbean, and the SARS, MERS, and influenza A outbreaks across the globe. The established natural reservoirs of human viruses are mainly farm animals, and, to a lesser extent, wild animals and arthropods...
August 4, 2017: Intervirology
https://www.readbyqxmd.com/read/28771479/direct-cost-of-dengue-hospitalization-in-zhongshan-china-associations-with-demographics-virus-types-and-hospital-accreditation
#20
MULTICENTER STUDY
Jing Hua Zhang, Juan Yuan, Tao Wang
BACKGROUND: Zhongshan City of Guangdong Province (China) is a key provincial and national level area for dengue fever prevention and control. The aim of this study is to analyze how the direct hospitalization costs and the length of stay of dengue hospitalization cases vary according to associated factors such as the demographics, virus types and hospital accreditation. METHOD: This study is based on retrospective census data from the Chinese National Disease Surveillance Reporting System...
August 2017: PLoS Neglected Tropical Diseases
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