Without Covid-19 jab, ‘reinfection may occur every 16 months’

Reports grow of repeat infection as experts warn prevalence among school pupils puts older people at riskCoronavirus – latest updatesSee all our coronavirus coverageAs Covid-19 infections surge in England, people are increasingly reporting catching Sars-CoV-2 for a second or even third time.New analysis has suggested that unvaccinated individuals should expect to be reinfected with Covid-19 every 16 months, on average.Continue reading...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus Vaccines and immunisation Immunology Infectious diseases Medical research NHS Science UK news Source Type: news

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Turk J Med Sci. 2021 Nov 30. doi: 10.3906/sag-2110-179. Online ahead of print.ABSTRACTIn the Wuhan province of China, almost two years ago, in December 2019, the novel Coronavirus 2019 has caused a severe involvement of the lower respiratory tract leading to an acute life-threatening respiratory syndrome, coronavirus disease-19 (COVID-19). Subsequently, coronavirus 2 (SARS-CoV-2) rapidly spread to entire world causing a pandemic and affected every single person on earth either directly or indirectly with destroying all faucets of social life and economy. Since the announcement of COVID-19 as a global pandemic, we witnessed...
Source: Turkish Journal of Medical Sciences - Category: General Medicine Authors: Source Type: research
Since the emergence of the COVID-19 pandemic, Johnson &Johnson (the Company) has been closely monitoring newly emerging COVID-19 variants. In collaboration with academic groups in South Africa and around the world, the Company has been evaluating the effectiveness of its COVID-19 vaccine across variants, including now the new and rapidly spreading Omicron variant. The Company is testing blood serum from participants in completed and ongoing booster studies to look for neutralizing activity against the Omicron variant. In addition, the Company is pursuing an Omicron-specific variant vaccine and will progress it as neede...
Source: Johnson and Johnson - Category: Pharmaceuticals Source Type: news
J Immunol Methods. 2021 Nov 26:113197. doi: 10.1016/j.jim.2021.113197. Online ahead of print.ABSTRACTSince the first detection of a novel Coronavirus (SARS-CoV-2) in December 2019 in Wuhan (China), it has become crucial to assess and quantize the human humoral immune response after SARS-CoV-2 natural infection and/or vaccination. Having well standardized and reliable serological assays able to accurately measure the total IgG antibodies response as well as the neutralization dynamics, play a pivotal role for the evaluation of "second" and "third" vaccines generation and in monitoring the effect in case ...
Source: Journal of Immunological Methods - Category: Allergy & Immunology Authors: Source Type: research
AbstractPurpose of ReviewThe severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has developed into a global pandemic that affect the health of hundreds of millions worldwide. In particular, SARS-CoV-2 infection in people with chronic human immune deficiency virus (HIV) infection is of concern, due to their already immunocompromised status. Yet, whether and how the immunological changes brought about by HIV will affect the immune responses against SARS-CoV-2 acute infection and impact the effectiveness of vaccines remain unclear. We discuss the intersection of COVID-19 in HIV-infected individuals.Recent FindingsPe...
Source: Current HIV/AIDS Reports - Category: Infectious Diseases Source Type: research
Since its emergence in Wuhan, China, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has spread very rapidly around the world, resulting in a global pandemic. Though the vaccination process has started, the number of COVID-affected patients is still quite large. Hence, an analysis of hotspot mutations of the different evolving virus strains needs to be carried out. In this regard, multiple sequence alignment of 71,038 SARS-CoV-2 genomes of 98 countries over the period from January 2020 to June 2021 is performed using MAFFT followed by phylogenetic analysis in order to visualize the virus evolution. These steps...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
TWiV reviews why children should be vaccinated against COVID-19, increased risk of infection with SARS-CoV-2 Beta, Gamma, and Delta variant compared to Alpha variant in vaccinated but not recovered individuals, and immune correlates of protection from the mRNA-1273 vaccine efficacy trial. Click arrow to playDownload TWiV 835 (59 MB .mp3, 99 min)Subscribe (free): iTunes, Google Podcasts, RSS, email Show notes at […]
Source: virology blog - Category: Virology Authors: Tags: This Week in Virology antibody coronavirus COVID-19 immune correlate of protection pandemic SARS-CoV-2 vaccine viral viruses Source Type: blogs
In COVID-19 clinical update #90, Dr. Griffin covers FDA expansion for booster doses, 3 more at home antigen tests approved by FDA, immune correlates analysis of mRNA-1273 vaccine, risk for stillbirth, PROVENT prophylaxis trial results, fluvoxamine recommendations, advice on molnupiravir, automated text messaging service for monitoring illness, and long COVID-19 after vaccination and infection. Click […]
Source: virology blog - Category: Virology Authors: Tags: This Week in Virology antiviral coronavirus COVID-19 inflammation monoclonal antibody pandemic SARS-CoV-2 vaccine vaccine booster variant of concern viruses Source Type: blogs
J Virol Methods. 2021 Nov 24;300:114375. doi: 10.1016/j.jviromet.2021.114375. Online ahead of print.ABSTRACTIn late 2019, following the emergence of a β-originated SARS-CoV-2, phylogenetic and evolutionary approaches have been demonstrated to strengthen the diagnostic and prophylactic stratagem of COVID-19 at an unprecedented level. Despite its clinical prominence, the SARS-CoV-2 gene set remains largely irrefutable by impeding the dissection of COVID-19 biology. However, many pieces of molecular and serological evidence have predicted that SARS-CoV-2 related viruses carry their roots from bats and pangolins of South ...
Source: Journal of Virological Methods - Category: Virology Authors: Source Type: research
Analysis: the new coronavirus variant seems highly transmissible, but the big question is whether it causes severe disease. Either way, poorer nations will be hit hardestCoronavirus – latest updatesSee all our coronavirus coverageIn early August Gideon Schreiber and a team of virologists at the Weizmann Institute of Science in Israel began playing around with the spike protein of the Sars-CoV-2 virus – the protein that allows the virus to enter our cells – to see if they could predict future mutations that could yield dangerous new variants of Covid-19.At the time, Schreiber noted with concern that there ...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus Infectious diseases Medical research Microbiology Science World news South Africa Source Type: news
AbstractPurpose of ReviewNutritional status is affected by the COVID-19 pandemic, directly or indirectly. Even with the recent rollout of the coronavirus disease 2019 (COVID-19) vaccines and availability of medicines such as remdesivir, and monoclonal antibodies, host nutritional status is pivotal in the fight against the acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and outcomes.  The purpose of this review is to discuss the effects of COVID-19-related lockdown on lifestyle behaviors, and the nutritional consequences, and the direct sequelae of the infection on nutrition including potential nutritio...
Source: Current Nutrition Reports - Category: Nutrition Source Type: research
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