Vaccine efficacy is usually expressed as a percentage, but what is it actually measuring? Statisticians explain what the numbers mean, and what they say about how well a vaccine can protect us.
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Articles on COVID-19
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A discussion is long overdue on how immune-insecure people have to deal with COVID-19.
Reducing transmission of the virus among younger people can help Britain reopen more quickly and reduce the risk of the virus infecting those most at risk.
America’s founders accepted the reality of human selfishness. But, they also said people were capable of thinking for the good of the whole, which is necessary for a free society.
For decades, US schools have been common sites for vaccine clinics to respond to outbreaks and provide catch-up immunizations. So why are they suddenly controversial?
Microaggressions are more subtle than outright discrimination. But they can directly affect HIV treatment outcomes.
With lockdowns likely to be a part of life in Australia until a significant majority of us are vaccinated, it’s timely to think about what we can do to look out for people who may be vulnerable.
The government has ordered 7,700 doses of sotrovimab. But until further evidence shows it’s effective, the guidelines say it should only be given to patients as part of a human clinical trial.
Australians who normally live overseas will face an even tougher time coming back to Australia, under new rules that start this week.
While tightened as part of a ‘tough on crime’ stance, the bail laws cause unintended trauma for women on remand, and should be repealed.
COVID has shown us we can develop a range of safe and effective vaccines. Now we need to do the same for TB.
Death is a part of life: but environmentally harmful burial practices, overcrowded cemeteries and unaffordable funerals are denying many the right to a good death.
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When will an African country host the Olympic Games?
In east Asian countries, past disease outbreaks have made face masks part of everyday life – but the social context supporting such behaviour isn’t present in the UK.
There are two ways to look at it: self-interest versus altruism.
Here’s what signs parents can look out for, and what to do if their child is feeling overwhelmed.
Machine learning is great at finding patterns but doesn’t know what those patterns mean. Combine it with knowledge gained from genetic research and you have a powerful view into the workings of cells.
A recent Sage report discussed the potential for vaccination or slaughter of pet dogs and cats should a much more deadly variant emerge.
It seems things have shifted slightly since earlier in the pandemic. A growing proportion of people hospitalised with the Delta strain are aged in their 30s or 40s.
NSW needs to mandate masks outdoors, provide adequate financial support, set up a ‘ring of steel’, use rapid tests for essential workers, and ensure cases not in full isolation get to zero, among others.
Top contributors
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Professorial Fellow, University of Canberra
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Associate Professor, Epidemiology, Deakin University
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Professor of Economics, UNSW Sydney
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Professor of Global Biosecurity, NHMRC L3 Research Fellow, Head, Biosecurity Program, Kirby Institute, UNSW Sydney
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Chair in Epidemiology, Deakin University
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Professor of Biostatistics and Epidemiology, University of South Australia
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Honorary Enterprise Professor, School of Population and Global Health, and Department of General Practice and Primary Care, The University of Melbourne
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Visiting Fellow, Crawford School of Public Policy, Australian National 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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Senior Research Fellow in Global Health, University of Southampton
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Professor of Medicine, University of East Anglia
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Associate Professor, School of Population Health, UNSW Sydney
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Professor of Public Health, University of Sheffield
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Professor of Medicine, University of Virginia
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Associate Professor of Bioethics, University of Portsmouth
