The findings come as researchers look to uncover the origin of the pandemic and catch potentially serious mutations in immuno-compromised people and wild animals.
By the summer of 2022, more than half of adult Canadians had been infected by COVID-19, a level of infection 20 times higher than the first year of the pandemic, a new national health survey from Statistics Canada has found.
Sally Otto, a professor in the department of zoology at UBC and member of an independent COVID-19 modelling group, said the numbers of infections are consistent with surveillance carried out on blood donated to Canadian Blood Services.The percentage of Canadians who have been infected with COVID-19’s Omicron strain has risen from around 50 per cent in the summer to 77 per cent as of February 2023, according to the COVID-19 Immunity Task Force.
On the other hand, COVID-19 infected certain radicalized Canadians at higher rates than the rest of the populations: those who identified as Black, Arab, Filipino, and Latin American were found to have the highest proportion of infections. One of the studies looked at how some of the earliest cases of COVID-19 clustered around Wuhan's Huanan Seafood Wholesale Market; the other, dug into the genetic history of the virus, pinpointing when and how it made the leap from animals to humans.
Rasmussen and her colleagues downloaded the genetic data from environment samples Chinese officials had collected from inside the market. But shortly after Rasmussen’s group downloaded the data, Chinese officials removed it from the open source website, she said. The World Health Organization has since called on China to once again share the samples with scientists from around the world.
To understand and monitor that threat, Rasmussen is leading a lab at the University of Saskatchewan to make a short list of wild animals susceptible to COVID-19 infection.
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