Three metres are not enough to ensure protection. Even at that distance, it takes less than five minutes for an unvaccinated person standing in the breath of a person with Covid-19 to become infected with almost 100 percent certainty. That’s the bad news. The good news is that if both are wearing well-fitting medical or,
A cloud of platelet factor 4 proteins interacts with the electrostatic surface of the Oxford vaccine, as seen through the computational microscope. An international team of scientists believe they may have found a molecular mechanism behind the extremely rare blood clots linked to adenovirus COVID-19 vaccines. “The mechanism which results in this condition, termed vaccine-induced
Six different COVID-19 boosters are safe and provoke strong immune responses in people who have previously received a two-dose course of ChAdOx1-nCov19 (Oxford–AstraZeneca [ChAd]) or BNT162b2 (Pfizer-BioNTech [BNT]), according to the first randomised trial of boosters given after two doses of either vaccine, published in The Lancet. ChAd has now been deployed in more than 180
A new comment on Omicron SARS-CoV-2 variant has been published on The Lancet by South African researchers of Centre for the AIDS Programme of Research in Durban South Africa. The Authors highlight that the first sequenced omicron case was reported from Botswana on Nov 11, 2021, and a few days lateranother sequenced case was reported
Objective of the paper is to examine whether SARS-CoV-2 reinfection risk has changed through time in South Africa, in the context of the emergence of the Beta, Delta, and Omicron variants A retrospective analysis of routine epidemiological surveillance data Setting Line list data on SARS-CoV-2 with specimen receipt dates between 04 March 2020 and 27
Is it risky to sing in a choir? What are the risks of eating in a small restaurant? How much difference does it make to open windows or clean surfaces? New interactive tool helps people make decisions on COVID-19. Everyone has been keen to know how much difference each possible action we’ve been told about
A French population-based study provides further evidence that the BNT162b2 Pfizer-BioNTech mRNA COVID-19 vaccine does not increase the short-term risk for serious cardiovascular adverse events in older people. The study showed no increased risk of myocardial infarction (MI), stroke, or pulmonary embolism (PE) following vaccination in adults aged 75 years or older in the 14 days following vaccination. “These
Company testing three existing COVID-19 vaccine booster candidates against the Omicron variant Company announcing a new variant-specific vaccine candidate against Omicron (mRNA-1273.529) Moderna, a biotechnology company pioneering messenger RNA (mRNA) therapeutics and vaccines, today announced updates to its strategy to address SARS-CoV-2 variants of concern, given the emergence of the B.1.1.529 (Omicron) variant. The recently described Omicron
Social media posts commenting on data from the UK, Israel and South Africa, among others, claim deaths from COVID (or all deaths) are now higher in vaccinated than unvaccinated citizens. Others make the more moderate claim vaccines do nothing to prevent death from COVID. These reports appear intimidating, because they usually utilise real data or statistics. Many of the raw numbers presented are
A new study by the WHO Regional Office for Europe and European Centre for Disease Prevention and Control (ECDC) published in Eurosurveillance estimates that 470,000 lives have been saved among those aged 60 years and over since the start of COVID-19 vaccination roll-out in 33 countries across the WHO European Region. This estimate does not
