A Nobel Prize-winning immunity and infection expert warns there is a "considerable risk" from the Delta variant of COVID-19 to young people after the death of a Sydney woman in her 30s.

Pfizer will produce 85 million booster shots to be offered to Australians who have already been fully vaccinated against COVID-19.

The Aussie women's 4x100m freestyle win the nation's first gold medal at the Tokyo Olympics, topping off a huge morning in the pool for Australia.

Australia's Boomers face Nigeria in an Olympic basketball tip-off before the men's hockey team faces India and the Olyroos take on Spain. Follow it all in our live blog.

A woman aged in her 30s is one of two new COVID-19 deaths recorded in NSW, with the state confirming 141 new locally acquired cases.

It will be at least 48 hours until health officials can assess the impact of Saturday's anti-lockdown rally which was condemned by the Police Minister as "a whole lot of halfwits" participating in an illegal event.

Australia's Ash Barty is out of the women's singles event at the Tokyo Olympics, losing in straight sets in round one. 

Computer chips are needed to power everything from phones to cars to fridges and keep economies rolling. But a global shortage is sparking a battle between China and the US to make more of them and South Korea has been caught in the midd...

Authorities have raised concerns that Saturday's anti-lockdown protest in the CBD could jeopardise the lift on restrictions scheduled for Tuesday night.

As SA continued its coronavirus lockdown overnight, residents were also bunkering down for entirely different reasons — but one decided to make use of the thick hail and get out his skis.

Queensland is on alert for new COVID-19 cases after authorities say a man from Sydney ignored orders to quarantine for 14 days and instead travelled north to Ballina then Brisbane, where he spent time in the community.

It can be difficult to keep up with all the COVID news, especially at the weekend when there are other things to do. So here it is, all in one place.

The electric bicycle market in Australia is booming with sales up a staggering 800 per cent in five years, but there are concerns illegal modifications mean people are riding them at dangerous speeds.

Australian skateboarder Shane O'Neill would use different tactics if he had his time again challenging the men's street skateboarding at Tokyo Olympics.

Australia's unassailable women's 4x100m freestyle relay team steal the show again as the medals begin rolling in for the Aussies. Here are the best bits so far from day 2 of the Tokyo Olympics.

Two of South Australia's new cases attended either a winery or a restaurant linked to the Modbury cluster. SA Premier Steven Marshall says while the state is still on track to emerge from lockdown after seven days, tomorrow would be "D-Day"....

Exercise, eat your veggies and don't smoke: the age old advice for a long healthy life remains true but education, staying social and even optimism are important too, writes Catherine Taylor. 

Meet the Australians cast out after standing up to their religions. For some, it's brought years of struggle, while for others, it's a "joyous" experience.

The mother of a Victorian woman killed by the actions of her partner wants the state to allow criminal records to be handed over to anyone fearing they could be subject to domestic violence.

Brisbane is gearing up to host the Games, but it was a group of mayors worried about something else entirely that got the plan on track.

Essendon face GWS after big wins by Geelong over Richmond and Sydney against Fremantle. Follow our live AFL ScoreCentre for all the scores, stats and results.

In a Gold Coast double header, the Sharks suffer an injury blow in their win against Canterbury after the Titans see off the challenge of St George Illawarra.

A newly released poison bait is being hailed as a major breakthrough in feral pig control.

A "match-up" app is giving NDIS participants, the elderly and their families greater choice and flexibility when it comes to how they are cared for.