A single-dose ChAdOx1-vectored vaccine provides complete protection against Nipah Bangladesh and Malaysia in Syrian golden hamsters

by Neeltje van Doremalen, Teresa Lambe, Sarah Sebastian, Trenton Bushmaker, Robert Fischer, Friederike Feldmann, Elaine Haddock, Michael Letko, Victoria A. Avanzato, Ilona Rissanen, Rachel LaCasse, Dana Scott, Thomas A. Bowden, Sarah Gilbert, Vincent Munster Nipah virus (NiV) is a highly pathogenic re-emerging virus that causes outbreaks in South East Asia. Currently, no approved and licensed vaccine or antivirals exist. Here, we investigated the efficacy of ChAdOx1 NiVB, a simian adenovirus-based vaccine encoding NiV glycoprotein (G) Bangladesh, in Syrian hamsters. Prime-only as well as prime-boost vaccination resulted in uniform protection against a lethal challenge with NiV Bangladesh: all animals survived challenge and we were unable to find infectious virus either in oral swabs, lung or brain tissue. Furthermore, no pathological lung damage was observed. A single-dose of ChAdOx1 NiVB also prevented disease and lethality from heterologous challenge with NiV Malaysia. While we were unable to detect infectious virus in swabs or tissue of animals challenged with the heterologous strain, a very limited amount of viral RNA could be found in lung tissue byin situ hybridization. A single dose of ChAdOx1 NiVB also provided partial protection against Hendra virus and passive transfer of antibodies elicited by ChAdOx1 NiVB vaccination partially protected Syrian hamsters against NiV Bangladesh. From these data, we conclude that ChAdOx1 NiVB is a suitable candidate for further NiV v...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research

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Publication date: Available online 9 October 2020Source: The Journal of Allergy and Clinical Immunology: In PracticeAuthor(s): Manuel Jorge Rial, Marcela Valverde, Victoria del Pozo, Francisco Javier González-Barcala, Carlos Martínez-Rivera, Xavier Muñoz, José María Olaguibel, Vicente Plaza, Elena Curto, Santiago Quirce, Pilar Barranco, Javier Domínguez-Ortega, Joaquin Mullol, César Picado, Antonio Valero, Irina Bobolea, Ebymar Arismendi, Paula Ribó, Joaquín Sastre
Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
Emergency-use authorizations, a formerly obscure corner of regulatory law, have become a centerpiece of the government ’s response to the pandemic.
Source: NYT - Category: American Health Authors: Tags: your-feed-science Coronavirus Risks and Safety Concerns Food and Drug Administration Hahn, Stephen M (1960- ) Coronavirus (2019-nCoV) Vaccination and Immunization Clinical Trials Drugs (Pharmaceuticals) your-feed-health your-feed-healthc Source Type: news
The use of an immune-system stimulant harvested from shark liver oil in the development of some coronavirus vaccines has animal conservationists pressing for alternatives.(Image credit: Reinhard Dirscherl/ullstein bild via Getty Images)
Source: NPR Health and Science - Category: Consumer Health News Authors: Source Type: news
There’s outcry over the rise in sexual assault and rape in the country over recent years
Source: Reuters: Health - Category: Consumer Health News Source Type: news
Authors: Abdeta D, Kebede N, Giday M, Terefe G, Abay SM Abstract Microbial resistance to the few conventional antitrypanosomal drugs, increasing resistance of vectors to insecticides, lack of effective vaccines, and adverse effects of the existing antitrypanosomal drugs justify the urgent need for effective, tolerable, and affordable drugs. We assessed antitrypanosomal effects of the hydromethanolic extract of Echinops kebericho Mesfin roots against Trypanosoma congolense field isolate using in vitro and in vivo techniques. Parasite load, packed cell volume (PCV), body weight, and rectal temperature in Swiss albino...
Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
Phoenix Children ’s Hospital held its fourth annual flu POD (point of distribution) this week, with this year's 13-hour blitz holding a special significance amid the global Covid-19 pandemic. On Oct. 7, nurses began vaccinating employees at 6 a.m. and concluded the one-day event at 7 p.m., vaccinating nearly 5,00 0 people. It’s preparation for another potential mass vaccination event: distribution of a safe and effective vaccine for Covid-19. Click through the photo gallery above to see scenes…
Source: bizjournals.com Health Care:Biotechnology headlines - Category: Biotechnology Authors: Source Type: news
Trump plans in-person rally on Monday as next presidential debate cancelled; Europe records 100,000 daily cases for first time; Canada at ‘tipping point’. Follow latest updatesEurope: Spain declares emergency in Madrid as Berlin emerges as hotspotUK workers to get two-thirds of wages if firms told to shutAustralia: Is Victoria ready to come out of lockdown?US presidential debate cancelled – live updatesSee all our coronavirus coverage5.42amBSTMy colleagueLuke Henriques-Gomes has this story giving you a summary of the main Covid-19 stories from Australia.A main point of the day has beenVictoria ’s pr...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak Infectious diseases Science World news France Trump administration Donald Trump Source Type: news
Phoenix Children ’s Hospital held its fourth annual flu POD (point of distribution) this week, with this year's 13-hour blitz holding a special significance amid the global Covid-19 pandemic. On Oct. 7, nurses began vaccinating employees at 6 a.m. and concluded the one-day event at 7 p.m., vaccinating nearly 5,00 0 people. It’s preparation for another potential mass vaccination event: distribution of a safe and effective vaccine for Covid-19. Click through the photo gallery above to see scenes…
Source: bizjournals.com Health Care News Headlines - Category: Health Management Authors: Source Type: news
We aimed to study the influence of aggressive content in media on student behaviour. The study sample consisted of students with disciplinary problems from three secondary schools in Kulai District, Johor, Malaysia. A total of 127 students (92 Males and 35...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
In this study, we modeled an alternative strategy to amplify tumor antigen-specific TCR transgenic CD8+ T cells through limited application of a long-acting IL-2 fusion protein, mIL-2/mCD25, which selectively targets the high-affinity IL-2R. Here, mice were vaccinated with a tumor antigen and high-dose mIL-2/mCD25 was applied to coincide with the induction of the high affinity IL-2R on tumor-specific T cells. A single high dose of mIL-2/mCD25, but not an equivalent amount of IL-2, amplified the frequency and function of tumor-reactive CD8+ T effector (Teff) and memory cells. These mIL-2/mCD25-dependent effects relied on di...
Source: Cancer Immunology, Immunotherapy - Category: Cancer & Oncology Source Type: research
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