The number of confirmed cases of Wuhan pneumonia (novel coronavirus disease, COVID-19) in Canada surpassed the 1 million mark on April 3 under the ravages of the British variant of virus B.1.1.7, and is facing a third wave of the epidemic, forcing several provinces to strengthen epidemic prevention restrictions in recent days. It is worth noting that as vaccination of elders against martial lung began to spread, the population of virus transmission has changed, with a significant increase in the number of young people infected, and even a number of serious cases.
According to the latest National Public Health Model data released on March 26, the number of cases has declined among the Canadian elderly population over the age of 80 since January this year, but the highest rate of cases among those aged 20 to 39, according to comprehensive Canadian media reports. The new data reflect the severity of the increase in variant viruses, and evidence is emerging from studies about the more lethal nature of the B.1.1.7 variant. Previous studies in the United Kingdom have noted that the B.1.1.7 variant is more easily transmitted and that a higher percentage of people under 20 years of age are infected.
More than 1/3 of the confirmed diagnoses across Canada have occurred in Ontario, where there will be increased outbreak restrictions for at least 4 weeks. As of March 28, variant virus cases accounted for 67% of the total confirmed cases of Wulping in Ontario, and more than 90% of these were cases of the British variant virus B.1.1.7. Epidemiologists say that as the virus mutates and evolves, the infectious and deadly variant is spreading among young people, and the rate of infection among unvaccinated young people is rising dramatically.
According to information released by the province of Ontario, 46% of new admissions to intensive care units (ICUs) are currently for patients under the age of 59, a significant increase from 30% before the provincial lockdown in 2020.
British Columbia (British Columbia) announced more than 2,000 new confirmed cases on the evening of the 3rd, the province’s health officials are concerned about the spread of the epidemic among young people, because the province is infected with the variant of the virus are mostly young people, many of whom are seriously ill and need to be hospitalized, or even admitted to ICU.
Colin Furness, an epidemiologist at the University of Toronto, said that with the growing number of people being vaccinated and the immunity of young people, the virus is expected to “change to survive” to spread more easily or avoid detection by the immune system, so this particular age group is being hit the hardest.
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