Coronavirus: What's happening in Canada and around the world on May 12

The latest:

• As moreprovinces halt use of AstraZeneca, Canada confirms 655,000 more doses will arrive next week.
• Preliminary findings into safety of mixing vaccines released by Oxford researchers.
• B.C. halts use of AstraZeneca vaccine for first doses.
• Ontario sees2,320 new cases while admissions to ICUs fall below 800.
• Ontario will stopboosting vaccine supplyto Toronto hot spots next week.
• The U.S. sees positive effects of mass vaccination against COVID-19.
• Travel restrictions between, within provinces could be lifted in time for summer travel, experts say.
• Saskatchewanstops giving AstraZeneca as 1st dose, considers Pfizer for 2nd.
• B.C. to give workers 3 paid days off for absences related to COVID-19.

Questions remained Wednesday about the future of the AstraZeneca-Oxford vaccine in Canada as Manitoba limited use of the shot, British Columbia later followed suit,and Ontario said it was deciding how it would use an incoming shipment reserved for second dose. Researchers in Oxford, England, also released some early findings froman ongoing study into mixing vaccines.

They found mixing different types of COVID-19 vaccines such as an AstraZeneca dose followed by a Pfizer-BioNTech dose can increasethe occurrenceofmild or moderate reactions such as fatigue, headacheor a fever.

"Whether or not this will relate to actually an improved immune response, we don't know yet," said study leader Dr. Matthew Snape, an associate professor in general pediatrics and vaccinology at the University of Oxford. "We'll be finding out those results in a few weeks' time."

The findings werepublished Wednesdayas correspondence, not as a full study,in the medical journal The Lancet.

• Mixing COVID-19 vaccine doses leads to more reactions, study finds

After initially saying the province would continue to administer first doses of the AstraZenecavaccine, British Columbia announced that would stop.

"Given the limited availability of the AstraZeneca vaccine supply, we are holding all remaining AstraZeneca vaccine for dose-two booster immunizations." said provincial health officer Dr. Bonnie Henry and Health MinisterAdrian Dix in a joint statement. "Existing pharmacy bookings will proceed, but no additional appointments will be accepted at this time."

Ontario which has stopped administering AstraZeneca as a first dose over concerns about a rare clotting disorder announced it will receive a quarter-million doses of the vaccine next week but is still reviewing when it will open appointments for second doses.

There is also alack of clarity for people in Quebec who received a first dose of AstraZeneca.In a statement Tuesday, the Health Ministry said it has hardly any doses of AstraZeneca left and the few that remain are only available to those 45 and up.

• Future of AstraZeneca COVID-19 vaccine in question in Canada over blood clots, supply issues

Alberta, too, has stopped offering the shot to those who have yet to be vaccinated, but cites a lack of supply for the move.

WATCH | Ontario's health minister on 2nd doses of AstraZeneca:

Ontario defers decision on vaccines after AstraZeneca pause

3 years ago

Duration 1:30

Ontario's Health Minister Christine Elliott says the province is awaiting guidance from health regulators and advisory committees before it makes two key decisions: what to do with AstraZeneca vaccines after first doses were paused and if two different COVID-19 vaccines can be mixed.

Manitoba said Wednesday that it plans to offer first dosesof the AstraZeneca vaccine only to those who might not be immunized at other sites.

Most doses will be held for second shots for people who received an AstraZeneca vaccine in the first go-around, the province said, "in response to ongoing evidence and supply." Manitoba said it will receive about 20,000 doses of AstraZeneca in its next shipment.

Saskatchewan is pausing first doses of AstraZeneca, citing supply issues.

In Nova Scotia, Premier Iain Rankin says more than 1,000 residents who had appointments booked for theAstraZeneca vaccinehave cancelled them, opting instead foranmRNA vaccine.

WATCH | Nova Scotians avoiding AstraZeneca:

Nova Scotia pausing use of AstraZeneca

3 years ago

Duration 1:24

Saying 'more and more' Nova Scotians are deciding not to take AstraZeneca in favour of mRNA vaccines, Premier Iain Rankin said the province will stop using AstraZeneca entirely until further notice.

The uncertainty over AstraZeneca has concerned some who already received their first dose of that vaccine, are undeterred by the risk of vaccine-induced thrombotic thrombocytopenia (VITT), and want their second dose.

More than two million Canadians have received AstraZeneca. The Public Health Agency of Canada told CBC News in an email Wednesday evening that it has confirmed 15 cases ofVITTin connection to AstraZeneca, including in three women whodied.

WATCH | Feeling concerned about your AstraZeneca vaccine? Here's why one doctor says you shouldn't:

Reassurance for those who received AstraZeneca vaccine

3 years ago

Duration 1:17

Ontario's outbreak response co-ordinator, Dr. Dirk Huyer, says taking a first dose AstraZeneca-Oxford COVID-19 vaccine was "so much the right thing" for people to have done and explains why.

For his part, Prime Minister Justin Trudeau, who received a first dose of AstraZeneca on April23, said his doctortold him he should get a second shot of the same vaccine.

NDP Leader Jagmeet Singh, who received afirst dose of AstraZenecaone day earlier,says he will follow public health advice on what vaccine to get for his second dose.

• Track how many Canadians have gotten their 1st and 2nd doses of COVID-19 vaccines

Experts have noted that the risk of clotting is much higher among people diagnosed with COVID-19 than those who received the AstraZeneca shot.

Health Canada's chief medical adviser has said that, from an authorization perspective,AstraZeneca's benefits against COVID-19 still outweigh the rare risk of VITT.

- From The Canadian Press, the CBC's Lauren Pelley, and CBC News, last updated at 6:45 p.m. ET.

What's happening across Canada

WATCH | Other doctors ready to help in Ontario, says expert:

Internationally trained doctors ready to help in Ontario during pandemic, says expert

3 years ago

Duration 5:00

Many internationally trained doctors are ready to work in Ontario but some are being held back by policy decisions, says Dr. Shafi Bhuiyan, chair of the Internationally Trained Medical Doctors Network.

As of 7p.m. ET on Wednesday,Canada had reported 1,305,776confirmed cases of COVID-19, with 76,676considered active. A CBC News tally of deaths stood at 24,766.

Ontarioon Wednesday reported2,320new cases of COVID-19 and 32 additional deaths. Hospitalizations in the hard-hit province stood at1,673, with 776 people in ICU due to COVID-related illness.

• Ontario will no longer give AstraZeneca COVID-19 vaccine as 1st dose due to blood clot risk
• ANALYSIS |Future of AstraZeneca COVID-19 vaccine in question in Canada over blood clots, supply issues

In Quebec, health officials on Wednesday reported 745 new cases of COVID-19 and 11 additional deaths.

Across the North,Nunavutwas the first territory to report updated figures on Wednesday, saying there were eight new cases of COVID-19.Premier Joe Savikataaqsaid on Twitter there were "69 active cases in the territory all in Iqaluit."

Health officials in theNorthwest Territoriesreported two new cases; there were no new cases in Yukon.

In Atlantic Canada on Wednesday,New Brunswickreported nine new cases of COVID-19, while Newfoundland and Labrador reported 10.

Nova Scotia reported149 new cases of COVID-19, and announced it will now offer four paid sick days to anyone who needs to take time off because of the virus.

Prince Edward Islandreported no new cases, and is dealing withnine active cases.

In the Prairie provinces,Manitobaon Wednesdayreported 364new COVID-19 cases and threenew deaths.The province has opened vaccination appointments to everyone aged 18 and up.Health officials say supplies have been increasing steadily, and everyone aged 12 and up should be eligible to get a first dose in the first half of June.

WATCH |COVID-19: How much protection is in the 1st dose of vaccine?

COVID-19: How much protection is in the 1st dose of vaccine?

3 years ago

Duration 8:03

Two infectious diseases doctors answer viewer questions about COVID-19 vaccines, including how much protection people get from the first dose and how variants may change that.

Saskatchewan, meanwhile, reported183new cases of COVID-19 on Wednesday and twoadditionaldeaths. The province was dealing with the fallout of a "miscommunication" thatleft more than 250 pharmacies scrambling to cancel vaccine appointments after a supply issue.

Alberta on Wednesday reported1,799 new cases of COVID-19 and fourmore deaths linked to the virus. Oilsands workers at one of the province's largest workplace outbreaks of the virus have told CBC News they are scared, don't feel safe, and have to keep working when sick or risk losing their pay.

British Columbiaon Wednesday reported 600new COVID-19 casesand one additional death.

-From The Canadian Press and CBC News, last updated at 7p.m. ET

What's happening around the world

As ofWednesday evening, more than 160million cases of COVID-19 had been reported worldwide, according to a tool from Johns Hopkins University that tracks cases. The reported global death toll stood at more than 3.3 million.

COVID-19 deaths in the United States have tumbled to an average of about600 per day the lowest level in 10 months with the number of lives lost dropping to single digits in well over half the states and hitting zero on some days.

Confirmed infections, meanwhile, have fallen to about 38,000 per day on average, their lowest mark since mid-September. While that is still cause for concern, they have plummeted 85 per centfrom a peak of more than a quarter-million cases per day in early January.

The last time the number of deaths wasthis low was in early July, nearly a year ago. COVID-19 deaths in the U.S. topped out in mid-January at an average of more than 3,400 a day, just a month into the biggest vaccination drive in the nation's history.

The overall U.S. death toll stands at about 583,000, and teams of experts consulted by the CDC projected in a report last week that new deaths and cases will fall sharply by the end of July and continue dropping after that.

The encouraging outlook stands in sharp contrast to the catastrophe unfolding in places such asIndia and Brazil.

United Nations Secretary General Antonio Guterrescalled Wednesday for a doubling of COVID-19 vaccine production and for fairer redistribution of the shots in the developing world.

The International Federation of the Red Cross says coronavirus cases are surging in Asia, with more than 5.9 million confirmed infections over the past two weeks.That's more than in all other regions of the world combined.

India's coronavirus deaths crossed a quarter-million on Wednesday in the deadliest 24 hours since the pandemic began, as the disease rampaged through the countryside, overloading a fragile rural health-care system.

Boosted by highly infectious variants, the second wave erupted in February to inundate hospitals and medical staff, as well as crematoriums and mortuaries. Experts are still unable to say with certainty when the figures will peak, cautioningthat case and death numbers could be significantly higher than reported.

Japan'sPrime Minister Yoshihide Suga is vowing to hold a safe Tokyo Olympics, even as some hospitals in Japan struggle to find beds and many Japanese people desperately wait for vaccinations.

Last month, Suga declared a third state of emergency in Osaka, the center of the current surge incases, as well as in Tokyo and two other areas. That has been extended through May 31.Only oneper centof the Japanese public has been fully vaccinated, even as millions of doses sit unused in freezers because of staff shortages.

In the Americas, Mexico plans to start a late-stage clinical trial this month for a COVID-19 vaccine candidate developed by China using similar technology to shots from Moderna and Pfizer, Foreign Minister Marcelo Ebrard said.

InEurope,British Prime Minister Boris Johnson said Wednesday that a public inquiry into the handling of thepandemic will be held next year and thatthe government has a responsibility to learn lessons from it.

Pope Francis returned to holdingaudiences with the faithful in person on Wednesday after a nearly six-month interruption due to COVID-19.

In the Middle East, Kuwait has suspended flightsand barred entry to travellersfrom Bangladesh, Pakistan, Nepal and Sri Lanka until further notice, state news agency KUNA said.

In Africa, South Africa on Tuesday reported 1,548 new cases, bringing the total number of reported cases to nearly 1.6 million.

-From Reuters, The Associated Press and CBC News, last updated at 8p.m.ET