More than 115 cases of eye damage reported in Ontario after solar eclipse
More than 115 people who viewed the solar eclipse in Ontario earlier this month experienced eye damage after the event, according to eye doctors in the province.
Officials have confirmed the first cases detected in Canada of the Omicron COVID-19 variant amid warnings that it remains unclear just how transmissible and severe infection by the highly-mutated variant might be.
On Sunday, it was revealed that two people from Ottawa, who had returned from a trip to Nigeria, tested positive for the variant of concern first detected in southern Africa.
The travellers entered Canada at Montreal’s Pierre Elliott Trudeau International Airport, where COVID-19 testing was completed, and then travelled to Ottawa, Ontario officials said Monday. The patients are in isolation and Ottawa Public Health is conducting case and contact management.
The province also has been following up on four more possible cases of the Omicron variant — two in the Hamilton, Ont., area and two in Ottawa.
In a statement on Monday, Ottawa Public Health said, "Yesterday, the government of Ontario announced two individuals in Ottawa tested positive for the COVID-19 Omicron variant with recent travel to Nigeria. We are now aware of two other returned travellers who have tested positive for the Omicron variant.”
All four individuals are self-isolating.
Officials in Quebec also confirmed one case of the Omicron variant during a press briefing Monday.
Ontario and Quebec are the first provinces to confirm detected cases of the variant, but health officials across the country have commenced targeted testing of people who have travelled from one of the seven southern African countries under federal travel restrictions.
Alberta's top doctor said Sunday that public health officials in her province were contacting people who had travelled from "one of the countries of interest" in the past 14 days to tell them to self-isolate.
"We are working with health officials across the country to monitor the Omicron situation closely," Dr. Deena Hinshaw tweeted on Sunday. "There are currently no confirmed cases of this COVID-19 variant in Alberta."
Experts warned it was only a matter of time before the variant made its way into Canada. And while federal officials say the detection of the cases shows COVID-19 screening efforts are working, federal Health Minister Jean-Yves Duclos says Canadians should expect more cases of the variant to be confirmed on Canadian soil.
"This development demonstrates that our monitoring system is working," Duclos said in a statement Sunday.
"As the monitoring and testing continues with provinces and territories, it is expected that other cases of this variant will be found in Canada."
Little is known about the B.1.1.529 variant, now known as Omicron, which was declared a variant of concern last week by the World Health Organization (WHO).
Although it has been linked to a rapid rise in cases in South Africa, WHO officials say it is not yet clear whether the variant is more transmissible or causes more severe illness than other coronavirus variants.
Initial research into Omicron has sparked concern from researchers because it has more than 30 mutations of the spike protein which can change the way a virus infects cells and spreads. These mutations can also make it harder to for the body’s immune system to attack it.
Speaking to reporters on Monday, Ontario's chief medical officer of health, Dr. Kieran Moore, said it is still too early to determine what impact the Omicron variant may have on public health protocols or the province’s health-care system, noting a lack of data on the transmissibility of the variant.
“When we saw Delta take over as a dominant strain, it took three to four months… it may be a two to three month transition if [Omicron] is more infectious than Delta,” he said. “We will have greater clarity in the coming weeks.”
While news of this latest variant has sparked calls from some to increase COVID-19 booster shot campaigns — like in the U.K., where officials have moved to offer booster shots to all adults just three months after their second dose — some experts say we need to learn more about the mutation before we draw conclusions about how vaccinations will be affected.
"There's really no evidence to link boosters specifically to protection against this variant and I think there's a lot of other steps we need to take first, and it would be premature, I think, to jump immediately to say, 'OK, boosters are our solution,'" Dr. Fahad Razak, an epidemiologist at St. Michael's Hospital in Toronto, emphasized during an appearance on CTV News Channel on Saturday.
He added that the importance of other public health measures remains, including proper air ventilation and filtration, mask-wearing and vaccinations.
Confirmation of the arrival of the B.1.1.529 variant in Canada comes just days after the country implemented new travel restrictions on foreign nationals who had visited several countries in southern Africa in the last two weeks.
Nigeria, however, is not on the list of countries affected by Canada's travel ban.
Moore said Monday that the province is conducting genomic sequencing on all eligible COVID-19 tests in the province in order to screen for Omicron and other variants.
Moore said that, according to the Public Health Agency of Canada, 375 people have returned from those countries of concern and will be contacted to undergo testing for the Omicron variant.
With cases now confirmed in 15 countries — including Scotland, Germany, Australia and Hong Kong — there has been some concern that restricting flights from African countries alone is not enough to stop the spread of the variant.
“These travel bans on particular countries in southern Africa are not going to be sufficient or are not going to be what stems the flow of the Omicron variant across our country,” infectious disease expert Dr. Dale Kalina told CTV News Channel Monday.
“The reality is it's already here and it's not probably just from individuals who travel to other countries, as we're seeing around the world.”
“What we do have in place already here in Canada is quarantine measures and vaccination mandates for anyone who's coming into the country… and those are the types of things that are really going to help us.”
The federal government is expected to be questioned Monday whether it will expand those travel restrictions to include more countries.
This comes ahead of new re-entry testing requirements for fully vaccinated Canadians and permanent residents. As of Nov. 30, fully vaccinated residents returning home after short trips to the United States and abroad will no longer have to provide proof of a negative molecular test, such as a PCR test.
A molecular test is still required for re-entry of those taking trips abroad lasting more than 72 hours.
Meanwhile, Ontario officials are urging the federal government to take stronger action at the border, suggesting that everyone be tested for COVID-19 upon arrival, not just before leaving for Canada.
"The best defence against the Omicron variant is stopping it at our border. In addition to the measures recently announced, we continue to urge the federal government to take the necessary steps to mandate point-of-arrival testing for all travellers irrespective of where they're coming from to further protect against the spread of this new variant,” read Sunday’s joint statement from Moore and Ontario Health Minister Christine Elliott.
More than 115 people who viewed the solar eclipse in Ontario earlier this month experienced eye damage after the event, according to eye doctors in the province.
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