The nhs has now issued a flu jab sos as fears grow that this will add up to a brutal winter Canada could face ‘worst kind’ of flu season as experts warn evolving strain may be mismatch for vaccine There is a lot of nuance and uncertainty, but leading flu experts have told me they would not be shocked if this was the worst flu season for a decade.
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Genetic characterization is used to determine how similar gene sequences of circulating influenza viruses are to the sequences of the vaccine components used in the current seasonal influenza vaccine.
In canada, flu season typically runs from november to april, and while anyone can catch the flu, the virus can sometimes lead to severe complications — even death, which is why experts stress.
Influenza is surging in canada, with a test positivity rate of 24.3% in the first week of february, according to data from the canadian respiratory virus surveillance report. With flu cases now rising in canada, medical experts are bracing for a difficult influenza season linked to the global spread of an evolving h3n2 strain that could be a mismatch for this year’s vaccine.