A departure tax based on length of stay, not distance travelled, would be a more effective sustainable tourism strategy.
L’expertise universitaire, l’exigence journalistique
Articles sur COVID-19
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Suspensions of the AstraZeneca vaccine may dent confidence and will slow down coverage – arguably creating a greater risk to public health.
Giving smaller vaccine doses in multiple shots is often more effective than a larger single dose.
Bike-share programs don’t just cater for residents. When tourists use them too, that greatly increases the value the whole community gets from these bikes.
Blood clots form to prevent blood loss both inside and outside the body. But they can become dangerous if they get dislodged from where they form.
Iron fights anemia. Bismuth relieves gastric problems. Lithium acts against depression and gold can treat rheumatoid arthritis. Metals are precious tools for good health.
Cuba’s access to internationally produced vaccines was nearly impossible due to the U.S. blockade. Its decision to make its own vaccines stands to pay off handsomely.
COVID-19 requires us to make ethical decisions like Ancient Greeks and Romans.
Injected vaccines tend to generate good immunity overall but less of a response in the nose and throat, where the virus enters and spreads from.
So far, most vaccines in the US are mRNA vaccines. These represent a new technology and are likely to take over the vaccine world. But how do they work? What are their weaknesses? Five experts explain.
With even seasoned cruisers now perceiving the holidays to be risky, the industry faces a huge challenge to win back trust.
Provinces have struggled to mitigate the COVID-19 health concerns of full-time and substitute teachers. The need for substitutes has increased, but fewer are available.
Texas and many other states have eased all or most coronavirus restrictions such as mask-wearing. A cost-benefit analysis suggests reversing those moves for just a short period could make a big difference.
Data from clinical trials and the real world COVID vaccine rollout suggest blood clots occur no more frequently in vaccinated people than they do in the general population.
Food insecurity affected many students even before the pandemic hit, with international students the worst hit. But students and universities have shown a lot can be done to end the problem.
Infectious dysentery, usually found in developing countries with poor living conditions, is turning up in Vancouver’s most marginalized neighbourhood.
Poor indoor air on tribal lands can cause a range of respiratory illnesses, including viral infections. Here’s how people are fixing the problem while preserving traditional ways.
The risk of COVID escaping from hotel quarantine or a health-care setting will never be zero. But in NSW and Queensland, was everything possible done to minimise the risk?
An out-of-control COVID epidemic in PNG would be a humanitarian and economic disaster for the nation itself, and a grave threat to the region.
The virus responsible for Covid-19 can infect different species and scientists are still looking for the animal that provided the link. All eyes are turning to mink farming.
Les contributeurs les plus fréquents
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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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Chair in Epidemiology, Deakin University
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Professor of Global Biosecurity, NHMRC L3 Research Fellow, Head, Biosecurity Program, Kirby Institute, UNSW Sydney
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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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Senior Research Fellow in Global Health, University of Southampton
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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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Professor of Medicine, University of East Anglia
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Associate professor, UNSW Sydney
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Professor of Medicine, University of Virginia
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Associate Professor of Bioethics, University of Portsmouth
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Professor of Public Health, University of Sheffield
