Vaccine-mediated protection of pigs against infection with pandemic H1N1 2009 swine influenza A virus requires a close antigenic match between the vaccine antigen and challenge virus.
In this study, we used a swine pH1N1 challenge virus to investigate the efficacy of whole inactivated virus vaccines homologous or heterologous to the challenge virus as well as a commercial vaccine. We found that vaccine-mediated protection was most effective when vaccine antigen and challenge virus were homologous and correlated with the specific production of neutralising antibodies and a cellular response to the challenge virus. We conclude that a conventional whole inactivated SwIV vaccine must be antigenically matched to the challenge strain to be an effective control measure. PMID: 30914224 [PubMed - as supplied by publisher]
Authors: Niriella MA, De Silva AP, Liyanage KI, Sarin SK, de Silva HJ Abstract While the COVID-19 pandemic evolves, we are beginning to understand the role the gastrointestinal tract plays in the disease and the impact of the infection on the care of patients with gastrointestinal (GI) and liver diseases. We review the data and understanding around the virus related to the digestive tract, impact of the pandemic on delivery of GI services and daily gastroenterology clinical practice, and the effects on patients with pre-existing GI diseases. PMID: 32650675 [PubMed - as supplied by publisher]
CONCLUSION: Among our HD patients, OCI is considered a comorbid finding associated with mild liver morbidity that warrants strict infection control and periodic testing for blood borne infections. PMID: 32649843 [PubMed - as supplied by publisher]
CONCLUSION: The modified Bateman SIZ model has been verified and used to predict the course of the COVID-19 pandemic in Heidelberg. Lockdown measures alone are insufficient to control the pandemic during 2021. Vaccination, diagnostic tests, and use of the Corona-Warn-App with quarantine could successfully control the spread of the coronavirus infection in the community. The Corona-Warn-App applied correctly may be the most effective. The model showed that vaccination with 50% efficacy is almost as effective as vaccination with 100% efficacy. PMID: 32646540 [PubMed - as supplied by publisher]
Daniel Griffin provides a clinical update on COVID-19, then Viviana Simon joins to review serological assays developed at Mt. Sinai for SARS-CoV-2 infection, tracking the outbreak in NYC, and listener questions. Click arrow to playDownload TWiV 638 (99 MB .mp3, 164 min)Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Intro music is by Ronald Jenkees Send your virology questions and […]
The industry can reverse years of scandals if it takes a fresh approach
Authors: Rivas VCMO, Hernández-Huerta D, Silva CPD, Gómez-Arnau J PMID: 32649065 [PubMed - as supplied by publisher]
Oregon reached another high mark for a daily total of new Covid-19 cases Saturday with 409. The previous record was 389, reported Thursday. The Oregon Health Authority said Saturday's high number was partly due to some cases not being counted Thursday as it switched to a new reporting system. Those cases appeared in Saturday's numbers. The total number of cases now stands at 11,851 with 232 deaths since the start of the pandemic in O regon. The OHA also warned that the virus is being spread through…
Publication date: Available online 10 July 2020Source: Forensic Science International: GeneticsAuthor(s): Maria Corazon A. De Ungria
Abstract In 2011-2012, contemporary North American-like H3N2 swine influenza viruses (SIVs) possessing the 2009 pandemic H1N1 matrix gene (H3N2pM-like virus) were detected in domestic pigs of South Korea where H1N2 SIV strains are endemic. More recently, we isolated novel reassortant H1N2 SIVs bearing the Eurasian avian-like swine H1-like hemagglutinin and Korean swine H1N2-like neuraminidase in the internal gene backbone of the H3N2pM-like virus. In the present study, we clearly provide evidence on the genetic origins of the novel H1N2 SIVs virus through genetic and phylogenetic analyses. In vitro studies demonst...
The objectives of this study were to describe the control measures implemented since October 2013 in response to this outbreak and to compare virus occurrence in piglets ‒ the subpopulation likely responsible for viral maintenance within the herd5,6 ‒ using a pre-post intervention study design. Additionally, the pattern of maternally-derived immunity in piglets sourced from the affected herd was assessed. Methods Study farm The study farm consisted of an intensive, closed-cycle swine breeding farm housing approximately 1,100 sows/gilts and 23,000 piglets located in North-East Italy. This farm supplies ~90 day-old pi...