Takeda's dengue vaccine effective overall in study but with major limitation

Takeda Pharmaceutical Co's experimental dengue vaccine was highly effective at preventing the mosquito-borne disease in a late stage study, but it failed to protect against one type of the virus in people with no prior exposure to dengue.
Source: Reuters: Health - Category: Consumer Health News Tags: healthNews Source Type: news

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Publication date: 16 November 2019Source: New Scientist, Volume 244, Issue 3256Author(s): Sam WongA vaccine based on a weakened version of the dengue virus was 80 per cent effective at preventing infections after one year in a trial of 20,000 children
Source: New Scientist - Category: Science Source Type: research
Lu Lu Recently, Zika virus (ZIKV) has attracted much attention in consideration of its association with severe neurological complications including fetal microcephaly. However, there are currently no prophylactic vaccines or therapeutic drugs approved for clinical treatments of ZIKV infection. To determine the potential anti-ZIKV inhibitors, we screened a library of clinical drugs with good safety profiles. Erythromycin estolate (Ery-Est), one of the macrolide antibiotics, was found to effectively inhibit ZIKV infection in different cell types and significantly protect A129 mice from ZIKV-associated neurological sign...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
Abstract Dengue fever is an acute infectious disease caused by dengue virus (DENV) and transmitted by Aedes mosquitoes. There is no effective vaccine or antiviral drug available to date to prevent or treat dengue disease. Recently, RNA-dependent RNA polymerase (RdRp), a class of polymerases involved in the synthesis of complementary RNA strands using single-stranded RNA, has been proposed as a promising drug target. Hence, we screened new molecules against DENV RdRp using our previously constructed virtual screening method. Mol-5, [1,2,4]triazolo[1,5-a]pyrimidine derivative, was screened out from an antiviral comp...
Source: Acta Pharmacologica Sinica - Category: Drugs & Pharmacology Authors: Tags: Acta Pharmacol Sin Source Type: research
Specific reduction in the intake of proteins or amino acids (AAs) offers enormous health benefits, including increased life span, protection against age-associated disorders, and improved metabolic fitness and immunity. Cells respond to conditions of AA starvation by activating the amino acid starvation response (AAR). Here, we showed that mimicking AAR with halofuginone (HF) enhanced the magnitude and affinity of neutralizing, antigen-specific antibody responses in mice immunized with dengue virus envelope domain III protein (DENVrEDIII), a potent vaccine candidate against DENV. HF enhanced the formation of germinal cente...
Source: Signal Transduction Knowledge Environment - Category: Science Authors: Tags: STKE Research Articles Source Type: news
Abstract Specific reduction in the intake of proteins or amino acids (AAs) offers enormous health benefits, including increased life span, protection against age-associated disorders, and improved metabolic fitness and immunity. Cells respond to conditions of AA starvation by activating the amino acid starvation response (AAR). Here, we showed that mimicking AAR with halofuginone (HF) enhanced the magnitude and affinity of neutralizing, antigen-specific antibody responses in mice immunized with dengue virus envelope domain III protein (DENVrEDIII), a potent vaccine candidate against DENV. HF enhanced the formation...
Source: Science Signaling - Category: Biomedical Science Authors: Tags: Sci Signal Source Type: research
William Summers joins the TWiV team to discuss some virology history, including the ever-changing concept of 'virus' and the contribution of phage research to the study of animal viruses. Hosts: Vincent Racaniello, Dickson Despommier, Alan Dove, and Rich Condit Guest: William Summers Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Bill’s ASV 2019 talk (PPT download) Inventing viruses (Ann Rev Virol) Timestamps by Jolene. Thanks! Weekly Science Picks Alan - Restoration of Western Flyer Rich - Purification of phage T7 RNA poly...
Source: This Week in Virology - MP3 Edition - Category: Virology Authors: Source Type: podcasts
TAK-003 appears to avoid the safety issues seen with an existing vaccine, but experts say a longer evaluation is needed.
Source: The Scientist - Category: Science Tags: News & Opinion Source Type: news
Dengue afflicts nearly 400 million people worldwide every year, but a vaccine has remained elusive. New research offers a path forward.(Image credit: Aditya Irawan/NurPhoto/Getty Images)
Source: NPR Health and Science - Category: Consumer Health News Authors: Source Type: news
A vaccine based on a weakened version of the dengue virus was 80 per cent effective at preventing infections after one year in a trial of 20,000 children
Source: New Scientist - Health - Category: Consumer Health News Source Type: research
New England Journal of Medicine, Ahead of Print.
Source: New England Journal of Medicine - Category: Internal Medicine Authors: Source Type: research
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