So-called challenge trials are common in vaccine development, but only for viruses which have treatments. It comes as scientists around the world race to find a Covid cure - including two in the UK.

Andre's cause of death currently remains unknown but sources confirmed to Variety on Friday that he had passed away.

Dr. Paul Nassif appeared on Australia's The Morning Show on Saturday and he had some plastic surgery predictions for a post-coronavirus world. 

The Australian Olympic Committee remains confident in south-east Queensland's bid to host in 2032.

Shoppers at Westfield Burwood in Sydney packed into the centre, ignoring social-distancing rules as they did non-essential shoppig.

Erin Molan has revealed that she and her fiancé of three years, Sean Ogilvy, are in no hurry to marry - after repeatedly addressing split rumours. 

Rock music legend Little Richard has died at the age of 87, his family have confirmed. The star, whose hits included Tutti Frutti, Long Tall Sally, and Good Golly Miss Molly, inspired a generation of musicians.

Olympic champion Christine Ohuruogu claimed there is 'no crisis' for her ahead of next month's World Championships in South Korea, despite finishing only third in the UK trials in Birmingham.

When world 400 metres champion Christine Ohuruogu told her younger sister Victoria she intends to carry on competing until the 2016 Olympics in Rio de Janeiro, she heard a slight groan.

World 400 metres champion Christine Ohuruogu has accused IAAF president Lamine Diack of 'not knowing what the hell is going on' in athletics.

Blac Chyna and her mom Tokyo Toni's ongoing tumultuous relationship was on blast in Monday's preview for her new reality show, The Real Blac Chyna.

The youngest of the famous reality show siblings, 32, could be seen exchanging flirty posts with Dominican singer Natti Natasha on Twitter recently.

The Kardashian's are 'very happy' with Rob's decision to get his health back on track. 

After all the lawsuits and nasty social media warfare, the 31-year-old mother-of-two now claims to have made peace with the Kardashian clan

The TV personality, 31, attended the launch party for her new reality series, The Real Blac Chyna with The Zeus Network, at Regal Cinemas Atlantic Station Stadium 16 in Atlanta on Sunday.

The TV personality, 31, opted for a solo outing as she was pictured leaving Dr. Aamir A Wahab's dentist office following a teeth whitening appointment in Los Angeles on Tuesday.

On the latest episode of her reality show The Real Blac Chyna, she had a tiff with her best friend Treasure over money, eventually removing her from her house and off the show.

The 31-year-old reality star has treated her fans to a glimpse of her perfect family home in Woodland Hills, which she purchased for $3.1 million in October last year.

Chyna, whose real name is Angela Renée White, arrived to the planned seven-hour deposition more than and hour and a half late, lawyers said in the docs.

Kim Kardashian tried to set up her brother Rob Kardashian on Tuesday where he made a rare appearance at the family's annual Christmas Eve party.

The 31-year-old reality star sizzled in a long red dress with high thigh slits Sunday at the Grammy Awards in Los Angeles amid a child custody dispute with her ex Rob Kardashian.

Blac Chyna has revealed she was 'distraught' to learn her daughter Dream Kardashian flew on a helicopter which later crashed, killing basketball star Kobe Bryant and eight others.

Stars shone bright at the Academy Awards on Sunday afternoon despite rain drenching the red carpet. Renee Zellweger and Charlize Theron brought glamour in classic black and white gowns.

Chyna, real name Angela Renée White, posed up a storm in a series of snaps shared to Instagram on Thursday as she plugged the Fashion Nova swimsuit and her hair piece.

Rob Kardashian has accused his ex Blac Chyna of attacking him with a six foot metal pole while under the influence of champagne and cocaine, as part of his years-long lawsuit.

She's the former reality star who's no stranger to showing off her ample assets and pert derriere in attire that leaves little to the imagination.

 And Skye Wheatley, didn't disappoint fans as she shared another sizzling swimsuit snap online on Friday.

The Big Brother star, 24, put on a busty display in her silk two-piece which she showcased in a series of Instagram posts on Thursday.

It's becoming an ever self-evident truism that reality television and controversy go hand in hand in Australia.

She was billed as a 'part-time dominatrix' on the first season of Big Brother Australia.

Reggie Bird, 44, has spoken about her nine-year-old son Lucas' heartbreaking battle with cystic fibrosis.

Her saucy antics on Big Brother 2013 made her a household name.

Big Brother winner Reggie Bird, 44, has conquered the odds by managing to raise her nine-year-old son Lucas as a legally blind single mother. 

Reggie Bird, 44, has shared heartbreaking images of her nine-year-old son Lucas' battle with cystic fibrosis.

He was one of Australia's first openly gay Big Brother contestants.

Director of the National Drugs and Alcohol Research Centre Professor Michael Farrel said alcohol and cannabis consumption would increase as anxiety and stress continues to grow

Just over 600 people died from alcohol poisoning in January, a 37 per cent drop compared to the same month last year. And average temperatures in Moscow were more than 20F higher than last year.

Married At First Sight producers went to extreme lengths to rile up the participants while filming Tuesday night's reunion dinner party on January 15.

Married At First Sight's Jo McPharlin has denied undergoing weight loss surgery after being body-shamed and labelled 'too skinny' by Internet trolls.

Married At First Sight's Jo McPharlin showcased her staggering weight loss as she promoted Jules Robinson's new shapewear brand Figur on Saturday. 

David Campbell celebrated six years of sobriety on Sunday. The 46-year-old Today Extra host tweeted that he had gone '2,190 days without a drink' and described being sober as 'a gift'.

Martha Stewart left an apparently alcohol-fueled nonsensical comment on an Instagram post on Saturday.

Figures commissioned by the Foundation for Alcohol Research and Education showed 70 per cent of Australians were drinking more since isolation began with one third now hitting the bottle every day.

A survey conducted by Alcohol Change UK has found problem drinking is leading to an increase in at-home tensions for more than 3.5million Brits and revealed 8.6 million people are drinking more.

Jo Ferguson died in hospital on April 8 from serious health problems including liver and kidney failure, both stemming from years of much publicised alcohol abuse.

The Rock DJ, 46, He has a well-documented past with drug abuse and admitted to being 'high' when he first met now-wife Ayda Field, 40

Australian doctor Juliana Chen has warned making unhealthy lifestyle choices during the coronavirus pandemic can have a negative impact on your health in the long run.

The original lawsuit of 10 accusers was filed against the 78-year-old Canadian in February, when FBI raided his Manhattan office.

Australians have been given unusual advice such as being told not to fart or drink too much alcohol in fears it could increase their chance of spreading or contracting coronavirus.

Vallejo planning commissioner Chris Platzer was seen throwing his pet cat during a public Zoom meeting and now faces possible removal from office.