When the same thing happened 252 million years ago, 90 per cent of all marine species died – but we can take actions to mitigate the effects of climate change.
At least three documented Covid-19 variants of concern are spreading fast around the world, putting vaccination efforts at risk of being derailed.
Giving smaller portions in multiple shots is often better than a large dose of vaccine in a single shot.
By minimising the media’s role at this moment, the US firm will make it harder for people to access good information, at a time when they need it most.
Coronavirus mutations emerged as the number of cases soared globally and as the virus responded to immunity that started to build up in the population.
Beijing appears to be targeting Australian trade to convey its displeasure that a regional united front appears to be forming to contain China’s ambitions.
How did Sars-CoV-2 enter the human population? What are the prospects for a vaccine in the near future? These are among the questions that experts have even as the pandemic reaches a grim milestone.
New study includes filming droplets and aerosols emitted when someone sings, highlighting how singing might be an infection risk.