For many health specialists in Montreal, a second wave of COVID-19 infections isn’t a matter of if but when — and how bad it will be.
And some epidemiologists believe the second wave may already be underway.
The good news is that many of these experts also say the severity and duration of that wave can be kept under control and that it is not a foregone conclusion that Quebec will again fare worse than the rest of the country.
Those observations are based on the answers that 170 medical doctors, epidemiologists, public health experts and medical researchers provided to CBC Montreal in an informal survey circulated earlier this month.
Of the 170 who answered, two-thirds indicated that a second wave was “very likely.” A further 24 per cent said it was “somewhat likely.”
The concept of a second wave is contested and carries different meanings. It should be understood here at its most basic level: another sustained increase in infections.
Some experts believe a second wave is inevitable, based on the history of infectious diseases such as SARS, a respiratory illness caused by a virus that is genetically related to the coronavirus, which causes COVID-19.
“It’s useful to understand that a second wave is not a discrete thing that happens or doesn’t,” said Dr. Cédric Yansouni, an infectious-disease physician at the McGill University Health Centre in Montreal. “There haven’t been any pandemics of respiratory diseases that had a single wave.
“You will always have ongoing transmission for some time. It can last for months and up to a two-year period.”
Another reason a second wave is likely is that not enough people were infected in the first wave to generate sufficient levels of immunity in the population at large.
“Second waves are expected for airborne transmitted viral infections for several reasons, the principal being the existence of a large population of unexposed [non-immune] hosts,” said Tatiana Scorza, an immunologist at the Université du Québec à Montréal.
A study by Canada’s COVID-19 Immunity Task Force, which did not include blood samples from Quebec, estimated that less than one per cent of Canadians have had the virus. The results of a separate study of Quebec blood samples are expected next month.
What will it look like?
There have been some indications that a second wave could already be underway in Quebec.
After peaking in late April and early May, the rolling average of new cases in the province reached its lowest point in the final days of June.
But the average has climbed steadily since the start of the month, and now stands at more than 150 new cases per day.
“If it starts increasing and not coming down over the next two weeks, I would say we’d be into a second wave,” said Mark Goldberg, an environmental epidemiologist and professor in the department of medicine at McGill University.
The Quebec government says despite the increase in cases, the public-health situation remains under control. It points to the low number of deaths and hospitalizations.
But Benoît Mâsse, a professor at the school of public health at Université de Montréal, cautioned that the increase in hospitalizations will likely come later.
He expects infections will increase for several more weeks. The danger, he said, is in September, when schools resume and the public begins to spend more time indoors, where the chances of infection are higher.
“We can expect a more substantial increase in infections with a rise in hospitalizations by the end of October, early November,” Mâsse said in an email exchange.
WATCH: Quebec’s health minister outlines preparations for second wave:
Health Minister Christian Dubé explains what the government is doing to prepare for a second wave of COVID-19 infections. 1:09
Other experts in Montreal are more reluctant to offer predictions. They stress that because the virus is new, there is a lack of data allowing them to anticipate infection patterns.
Janusz Kaczorowski, a professor and research director in the department of emergency and family medicine at Université de Montréal, pointed out that many of his colleagues initially expected infections to decrease over the summer months, much like the flu, another virus thought to be transmitted by airborne droplets.
“Look at what’s happening now in the United States … I mean the numbers are going through the roof,” Kaczorowski said.
“It doesn’t look like COVID is necessarily following the same pattern as the annual influenza. It is a different animal.”
What should we do about it?
While experts maintain another round of infections is inevitable, they say its severity will depend on government policy and the willingness of the public to follow guidelines.
Not only do scientists know much more about COVID-19 than they did six months ago, but the public is better informed about hygiene measures and elected officials also have a wider range of policy tools at their disposal.
“I think everybody’s learned a lot,” said Dr. Brian White-Guay, a public health and family medicine specialist who teaches at Université de Montréal.
“It’s likely that things would be handled differently in a second-wave setting.”
He suggested that health authorities, for example, now have a better understanding of which segments of the population are more vulnerable to COVID-19 and how best to protect them from the disease.
likely have a better sense of how to limit transmission in institutionalized settings, such as long-term care homes
As part of the survey CBC Montreal and Radio-Canada circulated to health experts in early July, we asked an open-ended question about what the Quebec government should do when a second wave of the virus hits.
The most popular response? Make masks mandatory.
Though the province implemented provincewide mask requirements in indoor public spaces as of July 18, the answers to our survey suggest the government was late in catching up with the scientific consensus.
“It should have been done much earlier in the pandemic,” said Dr. Eva Suarthana, a medical epidemiologist at Hôpital du Sacré-Coeur de Montréal.
Masks have been required in all indoor public spaces in Quebec since July 18. (Graham Hughes/The Canadian Press)
Another popular response was to stress protecting elderly Quebecers, especially those living in long-term care centres, where the vast majority of deaths occurred during the first wave.
Several experts said they were happy to see that provincial health authorities have already begun to implement tighter infection-control protocols and are training 10,000 new patient attendants for long-term care homes (CHSLDs).
But they also warned that delays in implementing these measures could come at a serious human cost.
“If we are not able to put in place proper measures to provide greater protection for [the] most vulnerable groups, there is reason to believe we would see a significant order of casualties, possibly up to the range of what we saw in the first wave,” said White-Guay.
Methodology
CBC collected 907 email addresses of health professionals from university and hospital websites. We sought out experts with research areas related to the pandemic, such as public health, epidemiology and emergency medicine. They were sent a questionnaire on July 7 and a reminder on July 10.
Of the 180 responses, 10 were duplicates; 104 of the 907 emails sent bounced back with out-of-office replies or the email addresses were invalid.
This is the breakdown of professions that responded:
Infectious diseases, including epidemiology, immunology, virology: 41. Emergency medicine: 23. Public health: 20. Family or general medicine: 17. Epidemiology of non-infectious diseases: 6. Biostatistics: 3. Other medical specialization: 55. Non-medical specialization: 5.
HALIFAX – The Nova Scotia government says it could be months before it reveals how many people are on the wait-list for a family doctor.
The head of the province’s health authority told reporters Wednesday that the government won’t release updated data until the 160,000 people who were on the wait-list in June are contacted to verify whether they still need primary care.
Karen Oldfield said Nova Scotia Health is working on validating the primary care wait-list data before posting new numbers, and that work may take a matter of months. The most recent public wait-list figures are from June 1, when 160,234 people, or about 16 per cent of the population, were on it.
“It’s going to take time to make 160,000 calls,” Oldfield said. “We are not talking weeks, we are talking months.”
The interim CEO and president of Nova Scotia Health said people on the list are being asked where they live, whether they still need a family doctor, and to give an update on their health.
A spokesperson with the province’s Health Department says the government and its health authority are “working hard” to turn the wait-list registry into a useful tool, adding that the data will be shared once it is validated.
Nova Scotia’s NDP are calling on Premier Tim Houston to immediately release statistics on how many people are looking for a family doctor. On Tuesday, the NDP introduced a bill that would require the health minister to make the number public every month.
“It is unacceptable for the list to be more than three months out of date,” NDP Leader Claudia Chender said Tuesday.
Chender said releasing this data regularly is vital so Nova Scotians can track the government’s progress on its main 2021 campaign promise: fixing health care.
The number of people in need of a family doctor has more than doubled between the 2021 summer election campaign and June 2024. Since September 2021 about 300 doctors have been added to the provincial health system, the Health Department said.
“We’ll know if Tim Houston is keeping his 2021 election promise to fix health care when Nova Scotians are attached to primary care,” Chender said.
This report by The Canadian Press was first published Sept. 11, 2024.
ST. JOHN’S, N.L. – Newfoundland and Labrador‘s chief medical officer is monitoring the rise of whooping cough infections across the province as cases of the highly contagious disease continue to grow across Canada.
Dr. Janice Fitzgerald says that so far this year, the province has recorded 230 confirmed cases of the vaccine-preventable respiratory tract infection, also known as pertussis.
Late last month, Quebec reported more than 11,000 cases during the same time period, while Ontario counted 470 cases, well above the five-year average of 98. In Quebec, the majority of patients are between the ages of 10 and 14.
Meanwhile, New Brunswick has declared a whooping cough outbreak across the province. A total of 141 cases were reported by last month, exceeding the five-year average of 34.
The disease can lead to severe complications among vulnerable populations including infants, who are at the highest risk of suffering from complications like pneumonia and seizures. Symptoms may start with a runny nose, mild fever and cough, then progress to severe coughing accompanied by a distinctive “whooping” sound during inhalation.
“The public, especially pregnant people and those in close contact with infants, are encouraged to be aware of symptoms related to pertussis and to ensure vaccinations are up to date,” Newfoundland and Labrador’s Health Department said in a statement.
Whooping cough can be treated with antibiotics, but vaccination is the most effective way to control the spread of the disease. As a result, the province has expanded immunization efforts this school year. While booster doses are already offered in Grade 9, the vaccine is now being offered to Grade 8 students as well.
Public health officials say whooping cough is a cyclical disease that increases every two to five or six years.
Meanwhile, New Brunswick’s acting chief medical officer of health expects the current case count to get worse before tapering off.
A rise in whooping cough cases has also been reported in the United States and elsewhere. The Pan American Health Organization issued an alert in July encouraging countries to ramp up their surveillance and vaccination coverage.
This report by The Canadian Press was first published Sept. 10, 2024.
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