Manitoba Public Health Urges Flu Vaccination Amid Virus Concerns

Manitoba’s chief provincial public health officer, Dr. Brent Roussin, is strongly encouraging residents to receive their influenza vaccinations, even as concerns arise about a potential mismatch with the latest H3N2 strain. Despite this uncertainty, Roussin emphasizes that vaccination remains the most effective means of protection against the virus.

In recent weeks, Manitoba has experienced a significant rise in influenza test positivity rates. Roussin attributes this increase primarily to the H3N2 subtype of influenza A, which is known for its capacity to evolve quickly and often leads to more severe illness compared to influenza B. He noted, “It’s really important that the discussion that there could be a possible mismatch shouldn’t affect anybody’s ability or anyone’s decision to receive that vaccine, because it’s still our best protection.”

As of November 29, there have been a total of 556 confirmed influenza cases across Manitoba since late August, including 41 new cases reported in the week of November 23. The Prairie Mountain Health region alone has recorded 111 cases during this period. Roussin highlighted that while children aged five and under face a higher risk of influenza, severe outcomes, including hospital admissions and fatalities, can affect individuals across all age groups.

The latest provincial respiratory virus surveillance report indicated that there were 1,623 respiratory-related visits to emergency departments in Manitoba starting from November 23. This period also saw 46 flu-related hospital admissions and three deaths. Roussin pointed out that severe outcomes are typically seen in unvaccinated individuals, underscoring the importance of vaccination.

The effectiveness of this year’s flu vaccine will not be fully understood until mid to late season, when health officials can analyze the data more comprehensively. The vaccine is designed to protect against several influenza strains, including H3N2, H1N1, and influenza B. Roussin reassured the public, stating, “Even when vaccines don’t have the great effectiveness for acquiring the illness, there’s usually really good effectiveness at preventing severe outcomes.”

Vaccination efforts are supported by the World Health Organization, which develops the influenza vaccine for the northern hemisphere based on data from the southern hemisphere. However, if a strain evolves after the vaccine has been formulated, a mismatch can occur.

Roussin noted that as respiratory virus season progresses, it typically exerts a significant impact on individuals, families, and the broader healthcare system. He urged the public to take influenza seriously, as it is a common seasonal illness that can lead to severe health complications.

In addition to influenza concerns, Manitoba has reported 167 COVID-19 cases in the Prairie Mountain Health region since late August, with nine new cases and several hospital admissions reported in the week of November 23. The province has administered over 205,000 COVID-19 vaccines and more than 288,000 flu shots since August.

To mitigate the spread of respiratory viruses, Roussin advises the public to wash their hands frequently, cover coughs, and stay home when feeling unwell.

Vaccination clinics for both influenza and COVID-19 have been established throughout the region, including locations such as the Brandon Friendship Centre and Shoppers Mall in Brandon. Jan Loe, director of public health services for Prairie Mountain Health, stated that while community vaccination clinics are winding down, the importance of immunization remains paramount. She encouraged individuals to consult with local public health nurses, pharmacists, or primary care providers for vaccination options.

As the flu season unfolds, health officials continue to stress the critical role of vaccination in safeguarding personal and public health.