The two types of COVID-19 tests – antigen and PCR – work in very different ways, which is why one is fast but less accurate and the other is slow and precise.
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Articles sur SARS-CoV-2
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Some viruses go extinct, while others stick around. The virus that causes COVID-19 seems likely to remain with us for the long term.
Professor Edward Holmes of the University of Sydney has scooped the top award at last night’s Prime Minister’s Prizes for Science, for his prompt efforts to understand the coronavirus genome.
Vaccination campaigns like the ones that eventually eliminated polio and measles in the United States required decades of education and awareness in order to achieve herd immunity in the U.S. population.
This challenges the current assumption that coughing is the primary driver of TB transmission.
Pediatric clinical trials for the COVID-19 Pfizer vaccine for children ages 5 to 11 have shown that the Pfizer shot is safe and effective.
When a student suffers a concussion, their school typically offers certain accommodations – lighter workload, rest breaks, more time to complete tests. Do kids with long COVID need the same?
Unvaccinated people are ten times more likely to contract COVID, and more likely to pass it on than vaccinated people.
UV lights come in a variety of different wavelengths, but not all are equally effective at disinfection. Researchers tested a number of commercially available lights to find the best.
Countries like the United States, Denmark, Germany, Spain and Switzerland have already vaccinated many millions of adolescents and their experience will guide countries that follow suit.
As boosters are authorized for all three COVID-19 shots available in the US, the ability to swap out vaccine types looks to be a boon to the immune system.
Today should not be seen as ‘freedom day’. But it is the first step towards a time when the pandemic won’t dominate our daily lives.
Despite having comparatively poor health infrastructure, African public health practitioners have amassed a wealth of experience of managing epidemics.
Pre-COVID-19 dentists wore some sort of respiratory protection like examination masks, surgical masks or respirators. COVID-19 has elevated the number of personal protective equipment needed.
There is immense interest in understanding whether potentially protective SARS-CoV-2 antibodies are provided to the baby via breast milk. This is what we know so far.
Modelling suggested Sydney would open up when NSW had around 1,900 new daily cases. Last Monday, it eased restrictions with just 496 new cases.
In light of mounting research showing the serious risks of contracting COVID-19 during pregnancy, the CDC is re-upping its urgency that pregnant women get their shots.
Rapid antigen testing might be convenient. But high prices for home kits will put people off, compounding disadvantage.
Home may have become associated with safety and control during lockdown, so resuming life in public can seem daunting.
But the immune cells that vaccination spurs do last a long time.
Les contributeurs les plus fréquents
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Professor of Medicine, University of Virginia
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Research associate, Warren Alpert Medical School, Brown University, Brown University
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Associate Professor, Epidemiology, Deakin University
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Dean Faculty of Health Sciences and Professor of Vaccinology at University of the Witwatersrand; and Director of the SAMRC Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand
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Vice-Chancellor's Research Fellow, School of Health and Biomedical Sciences, RMIT University
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Professor of Global Biosecurity, NHMRC L3 Research Fellow, Head, Biosecurity Program, Kirby Institute, UNSW Sydney
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Instructor of Human Immunology, Emory University
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Postdoctoral Fellow in Virology, University of Colorado Boulder
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Postdoctoral Fellow in Virology and Immunology, University of Colorado Boulder
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Professor, Nursing, School of Nursing and Midwifery, Griffith University
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Research Leader in Virology and Infectious Disease, Griffith University
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Research Fellow in Virology, University of Leeds
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Lecturer in Virology, Queen's University Belfast
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Professor of Molecular, Cellular and Developmental Biology, University of Colorado Boulder
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Professor of Pathology, Microbiology and Immunology, University of South Carolina
