Air turbulence: When can it become dangerous?
Flight turbulence like that encountered by a Singapore Airlines flight on Tuesday is extremely common, but there's one aspect of severe turbulence an aviation expert says can lead to serious injury.
The Delta coronavirus variant doubles the risk of hospitalization compared with the previously dominant variant in Britain, but two doses of vaccine still provide strong protection, a Scottish study found on Monday.
The study said early evidence suggested the protection from vaccines against the Delta variant, first identified in India, might be lower than the effectivessness against the Alpha variant, first identified in Kent, southeast England.
The study, published in a research letter in the Lancet, looked at 19,543 community cases and 377 hospitalizations among 5.4 million people in Scotland, 7,723 cases and 134 hospitalisations of which were found to have the Delta variant.
Chris Robertson, Professor of Public Health Epidemiology, University of Strathclyde, said that adjusting for age and comorbidities, the Delta variant roughly doubled the risk of hospitalization, but vaccines still reduced that risk.
"If you test positive, then two doses of the vaccine or one dose for 28 days roughly reduces your risk of being admitted to hospital by 70%," he told reporters.
Two weeks after the second dose, Pfizer BioNTech's vaccine was found to have 79% protection against infection from the Delta variant, compared to 92% against the Alpha variant. For Oxford-AstraZeneca's vaccine, there was 60% protection against Delta compared with 73% for Alpha.
The researchers cautioned against using the data to compare the vaccines against each other due to differences in the cohorts which received each type of shot, and differences in how quickly immunity is developed with each shot.
They said two doses of vaccine provide much better protection than one dose against the Delta variant, and a delay to easing lockdown in England would help more people get second doses and for their immune responses to build up.
"I think any sort of increase in the window of opportunity before lockdown measures are completely brought to an end will be helpful," said Aziz Sheikh, Director of the Usher Institute at the University of Edinburgh.
Flight turbulence like that encountered by a Singapore Airlines flight on Tuesday is extremely common, but there's one aspect of severe turbulence an aviation expert says can lead to serious injury.
British Columbia serial killer Robert Pickton was attacked and sustained life-threatening injuries in a Quebec prison Sunday in what officials described as a 'major assault.'
World Food Programme executive director Cindy McCain says people living in Gaza are 'wasting' as famine concerns continue amid the war between Israel and Hamas.
New inflation data is 'welcome news' for consumers and an economist says it could signal the possibility for a interest rate cut as several core measures also continue to ease.
The Toronto Blue Jays have offered tickets and a signed baseball to a fan who says she was struck in the face by a 110 m.p.h (177 km/h) foul ball at Friday’s game.
Ontario Provincial Police continue to investigate a long weekend fatal boat collision on Bobs Lake, north of Kingston, Ont.
An investigation has been opened into the death of Matthew Perry and how the “Friends” actor received the anesthetic ketamine, which was ruled a contributing factor in his death.
House of Commons Speaker Greg Fergus is facing fresh Conservative-led calls to resign, this time over "very partisan" and 'inflammatory' language used – the Liberals say mistakenly – to promote an upcoming event.
As Prime Minister Justin Trudeau continues the 'Team Canada' charm offensive to U.S. lawmakers and business leaders, Canada's ambassador to the United States downplayed the effect of another Trump presidency on Canada.
Public libraries in Atlantic Canada are now lending a broader range of items.
Flashes of purple darting across the sky mixed with the serenading sound of songs will be noticed more with spring in full force in Manitoba.
Catching 'em all with impressive speed, a 7-year-old boy from Windsor, Ont. who only started his competitive Pokémon journey seven months ago has already levelled up to compete at a world championship level.
A sanctuary dedicated to animals with disabilities is celebrating the third birthday of one of its most popular residents.
2b Theatre recently moved into the old Video Difference building, seeking to transform it into an artistic hub, meeting space, and temporary housing unit for visiting performers in Halifax.
A B.C. woman says her service dog pulled her from a lake moments before she had a seizure, saving her life.
A Starbucks fan — whose name is Winter — is visiting Canada on a purposeful journey that began with a random idea at one of the coffee chain's stores in Texas.
Members of Piapot First Nation, students from the University of Winnipeg and various other professionals are learning new techniques that will hopefully be used for ground searches of potential unmarked grave sites in the future.
ALS patient Mathew Brown said he’s hopeful for future ALS patients after news this week of research at Western University of a potential cure for ALS.