News in 5: Wife's 'lessons' after husband's death; Cameroon athletes missing; Trump's threat to Russia.

1. “Enjoy the little moments”. Wife’s heartbreaking tribute to husband after his cystic fibrosis death.

"Enjoy the little moments."

That's the message 32-year-old Kaila Maartensz wants the world to know in the wake of her husband Matt's death after a lifelong battle with cystic fibrosis.

Theirs was a love story like no other: both were diagnosed with cystic fibrosis as babies, and met while being treated in Perth's Princess Margaret Hospital for Children. As adults, they fell in love.

In 2013, Kaila received a set of new lungs. A year later Matt received his own transplant and, in the same week, proposed to Kaila. They were married in 2015, Seven News reports.

But on December 5 last year, Matt was hospitalised, struggling to breathe and, a week later, doctors broke the heartbreaking news there was nothing more they could do.

Just two weeks ago, and two weeks after the pair celebrated their three year wedding anniversary, Matt passed away. Kaila has since shared a touching tribute to her late husband, detailing the important lessons she learned while watching "someone you love waste away before your eyes".

Things I’ve learnt over the past four months. If you want to travel, do it! Do it while you can and book the nicer room and bid on the flight upgrade if it’s possible to do so. But when you want to stay home do that too. If you want to sit on the couch all day watching Netflix, binge an entire series in a day. Laugh at yourself. But also don’t be afraid to cry. Stay up late and chat to your husband about every little thing on your mind. Don’t worry about having to get up early. You can catch up on the sleep. Enjoy the little moments. It’s something you have to be mindful of doing but the little moments are some of the most special ones. Don’t be glued to your phone but do take photos of all the memories. Take photos until your phone can’t hold anymore. And don’t forget to back them up! Eat the chocolate because it’s delicious but look after your body. It’s the only one you have. Tell people what you want them to know. Tell them you love them or that you’re proud of them or that you’re grateful for them. Tell them to leave you alone if you need to! Don’t wait for an occasion to buy someone a present. If you see something you know they’ll love, give it to them! Pat every dog you see. You’ll never regret patting a dog. Trust me. Celebrate your birthdays. Don’t be sad about getting older. The alternative is much worse. Breathe. I don’t think there are many people who don’t take breathing for granted. Once a day take a deep breath and realise how lucky you are. Don’t feel bad about doing what makes YOU feel good. Volunteer. If you honestly don’t have the time, donate to charity. It feels so incredible to help others. Turn off your alarm occasionally and have a sleep in. Especially with the person (or pet) that you love. Don’t overthink things that won’t matter at the end. Just surround yourself with people, animals and things that you love. Go to places that make you happy. Do things that bring you joy. And when I asked Matt what’s the one thing he’d change? Dance more. So dance. Whenever you can and however you want. And think of Matt while you’re dancing. ????

A post shared by Kaila Maartensz (@lovelydinosaur_) on Apr 8, 2018 at 8:51am PDT

"If you want to travel, do it! Do it while you can and book the nicer room and bid on the flight upgrade if it's possible to do so," she shared.

"Laugh at yourself. But also don't be afraid to cry. Stay up late and chat to your husband about every little thing on your mind. Don't worry about having to get up early. You can catch up on the sleep.

"Enjoy the little moments. It's something you have to be mindful of doing but the little moments are some of the most special ones."

Her advice also includes "eat the chocolate because it's delicious", "tell people what you want them to know" and "pat every dog you see".

"Breathe. I don't think there are many people who don't take breathing for granted. Once a day take a deep breath and realise how lucky you are," she wrote.

She also asked her followers to do one thing for Matt: dance.

"When I asked Matt what's the one thing he'd change? Dance more. So dance.

"Whenever you can and however you want. And think of Matt while you're dancing."

Matt will be farewelled at a service today at Royal Perth Yacht Club. A GoFundMe page has also been set up to help support Kaila.

2. Donald Trump has warned Russia "missiles will be coming" after the latest chemical weapons attack on Syrian civilians.

"Get ready Russia," tweeted US President Donald Trump, warning that missiles "will be coming" at Syria in retaliation for this weekend's alleged chemical weapons attack against civilians in Syria.

Russia has vowed to shoot down any missiles fired towards its Syrian ally, but Trump's tweet on Wednesday noted that the US missiles will be "nice and new and 'smart!'"

"You shouldn't be partners with a Gas Killing Animal who kills his people and enjoys it," he wrote, a reference to Syrian President Bashar al-Assad.

Russia vows to shoot down any and all missiles fired at Syria. Get ready Russia, because they will be coming, nice and new and “smart!” You shouldn’t be partners with a Gas Killing Animal who kills his people and enjoys it!

— Donald J. Trump (@realDonaldTrump) April 11, 2018

The World Health Organisation reported Wednesday that 500 Syrian patients treated after Saturday's attack on the city of Douma showed signs of suffering from a toxic chemical attack.

Russia's Foreign Ministry responded to Trump's threat by saying the US should focus on eliminating internationally recognised terrorist forces in Syria, not the government.

"Smart missiles should fly in the direction of terrorists and not the legitimate government, which for several years has been battling with international terrorism on its territory," spokeswoman Maria Zakharova wrote on Facebook.

She warned that a US missile strike could destroy evidence of the use of chemical weapons and thus hinder an objective investigation.

Trump said in a second tweet that the US relationship with Russia is "worse now than it has ever been, and that includes the Cold War."

"There is no reason for this. Russia needs us to help with their economy, something that would be very easy to do, and we need all nations to work together. Stop the arms race?" Trump wrote.

Russia, the main military backer of Syria's leadership, has called for a thorough investigation into the chemical weapons incident and raised concerns that fighting against the Syrian government could lead to instability in the country.

Alexander Zasypkin, Russia's ambassador to Lebanon, which neighbours Syria, said Russia would shoot down any US missile launched at Syria and "the objects from which the volleys are launched will be struck," the Interfax news agency reported.

3. Eight athletes from Cameroon have gone missing from the Commonwealth Games athletes village after 'deserting' their team.

Eight Cameroonian Commonwealth Games athletes have gone missing from the athletes village, with two failing to turn up for competition.

The five boxers and three weightlifters left the Gold Coast village over the past three days but authorities say they have not broken any law.

Boxer Ulrich Rodrigue Yombo failed to appear at the weigh-in on Wednesday for his quarter-final bout in the 81kg division against Harley O'Reilly, handing the Canadian the fight.

Chef de mission Victor Agbo Nso said team officials had notified Australian police.

"These athletes ... were part of a team that had a training camp in Warwick before getting to Gold Coast," he said in a statement.

"But out here, only six of them effectively took part in their respective competitions, while two left without competing."

Games organising committee chairman Peter Beattie said none of the athletes had breached Australian law.

"This happens at every Games, it's no surprise ... if there is a breach (home affairs minister) Peter Dutton and his team will deal with it," Beattie said.

Commonwealth Games Federation chief executive David Grevemberg said his organisation was monitoring the situation but it was a matter for the athletes and their team officials unless they break the law.

The nation's other two weightlifters and men's basketball team had left Australia and were en route to Cameroon, team officials said.

In 2012, five Cameroonian male boxers, a female footballer and a male swimmer absconded from the London Olympic village.

And 24 African athletes went missing after the Melbourne Commonwealth Games in 2006, with 14 from Sierra Leone being given asylum and eventually settling in Sydney.

4. Queensland family under investigation after toddler was hospitalised with burns after he was "placed on a hot stove".

A north Queensland family is being investigated after a toddler was hospitalised with "shocking" burns he sustained after being placed on a hot stove.

AAP understands the boy's mother had been carrying the child and went to put him down on the kitchen bench, but accidentally placed him on the hot surface.

It is understood the mother-of-eight immediately took the child to Townsville Hospital following the March 27 incident.

The toddler was discharged on Wednesday, but Queensland police say it is still investigating the matter.

The family is known to the state's Child Safety Department.

Deputy Opposition Leader Tim Mander said he was concerned the incident indicated there were broader problems within the child safety system.

"We are concerned that this may be a case of another child slipping through the cracks," he said on Wednesday.

"It is reasonable to ask questions about how those injuries came about."

Child Safety Minister Di Farmer said the boy had suffered shocking injuries.

"Any injury suffered by a child is distressing," Ms Farmer said in a statement.

Ms Farmer said she had asked the department for a full briefing about the circumstances.

"The safety and wellbeing of all children known to the department is our top priority," she said.

5. Researchers may have found a disturbing link between concussion and dementia.

A link between brain injury such as concussion and dementia has been confirmed by a study of almost three million people, says an Australian expert according to AAP.

Traumatic brain injury (TBI) was found to increase the risk of Alzheimer's and other forms of dementia by 24 per cent over a period of 36 years.

Even a relatively minor knock on the head resulting in concussion led to a 17 per cent risk increase, according to the study published in The Lancet Psychiatry.

The authors stressed, however, that the chances of developing Alzheimer's after a brain injury still remained low.

The idea that blows to the head suffered by boxers and footballers may increase the risk of dementia is a hotly debated issue.

Dr Adrian Cohen at the University of Sydney said the evidence is in and this study should act as a "wake-up call" to sporting organisations.

"There are individuals at risk here," he said.

"Individuals with a history of traumatic brain injury, including those with less severe injuries, have an increased risk of developing dementia, even decades after the injury," said Professor Jesse Fann, the lead author of the study.

"However, it's important to emphasise that although the relative risk of dementia is increased after traumatic brain injury, the absolute risk increase is low. Our findings do not suggest that everyone who suffers a traumatic brain injury will go on to develop dementia in later life."

Dr Cohen, the founder of HeadSafe - an Australian not-for-profit organisation dedicated to the prevention of head injuries - said it was critical that footballers shouldn't be cleared to go back on the field before their brain has had sufficient time to recover from a serious concussion-causing knock to the head.

"We don't want to stop sport, we want sport to be safe and enjoyable, we want concussion recognised and staying on the field a mark of stupidity not of bravery," he said.

6. A Queensland photographer is on the hunt to find the couple in this candid, romantic photo.

"Do you know this couple?" It's the question Queensland-based photographer Troy Lum is asking Facebook after he snapped a romantic, candid moment between two loved up people in early March.

He's now on a nation-wide search to track down the pair so he can pass on a copy of the snap.

Speaking to ABC News, Troy said he spotted the couple on March 8 while he was snapping photographs along Woody Point, Queensland around sunset.

The pair were sat cross-legged across from each other, leaning in for a kiss, with their iPhone camera propped up and set to a timer function to capture a photo of the moment.

"Sometimes just when you see something you know will make a great photo and you get it, you move on to take other photos. That's all I did, they were having a bit of a moment," Troy said.

"I kept on taking photos, and by the time I thought about it they were gone. So I didn't get to say anything to them, or that I captured the moment.

"I just want to touch base and pass on a nice photo if they want a copy."

If you know (or are!) the photogenic couple, you can contact Troy here.