It feels like almost everyone has had some sort of lurgy in recent months, whether it’s COVID, the flu, a bad cold or some kind of nasty stomach bug. This morning, researchers say there’s a good chance you’ve had COVID – the latest round of analysis from a sample of blood tests has shown at least 46% of Aussie adults had been infected by early June. That’s almost tripled since late February, when it was thought to be 17%. Kirby Institute researcher Dorothy Machalek says it’s down to the international border reopening and relaxing restrictions like mask-wearing mandates. “We’ve also gone into winter, so the behaviour of people has changed – it’s gotten colder, so we’re inside more.” She says the rise isn’t unexpected, “but it does seem like a big increase.” If you haven’t had COVID – actually, there’s a good chance you have… About 40% of confirmed cases are asymptomatic, according to the research.