World Coronavirus Dispatch: Australia had no Plan B, it came back to haunt

WHO warns of 'chaos' if individuals mix shots, Astra-Oxford said to be looking at tweaking vaccine to prevent rare clots, and other pandemic-related news across the globe

How vaccine chaos left a Covid-zero haven locked down and exposed

Australia was once hailed as a Covid-zero haven as it kept the virus at bay for the better part of the pandemic year. This was done through strict lockdowns and shutting down borders even at the hint of infections. But the strategy seems to have run its course as newer, more virulent strains slip through border curbs. And the country had no 'Plan B' to speak of in the fight against the ever-evolving coronavirus. In contrast, rapid vaccinations have allowed other nations to tolerate infections as long as the hopsitalisations