Wednesday , May 25 2022

Another season & # 39; hard-hitting influence Canada, and affects more children


Pharmacist Faltaous Ash prepares to administer the vaccine Fluzone in Danforth IDA Drug Mart, Toronto, 22 October, 2018.

Christopher Katsarov

Canadian pediatric hospitals are seeing an increase in admissions linked so as H1N1 flu re-emerges as the dominant strain of influenza

The number of children hospitalized entered for viral diseases s & # 39; now this season is more than twice what was currently in the last year, and more than three times as much it was at this point in the season of 2016-2017 flu, according to the Public Health Agency of Canada (PHAC).

More children also sent in the intensive care unit to combat serious flu embodiment than in & # 39; this time in recent seasons, figures show.

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The reason is that the flu affects children and adolescents more difficult than usual is the return of & # 39; H1N1 after two seasons in which other types of prevail & # 39; A flu, known as H3N2.

However, there is a silver lining to that change: While H1N1 is hard on children, it is easier for older, the group most susceptible to serious complications and death from influenza.

The public health experts also say that the shot against the flu tends to work better against H1N1 to make against H3N2, which means that the influence can & # 39; wind takes gentle in season 2018-2019 than in recent seasons.

"Generally, H1N1 may be more mild seasons. The reason may be more light is the elderly who lived through & # 39; H1N1 when they were younger have better immunity against H1N1, "said Michelle Murti, a public health doctor & # 39; Health Ontario public. " What we see is a shift to a younger age group in H1N1 years where children and young adults tend to be more susceptible. "

H1N1 is most known as the culprit behind the pandemic & # 39; 2009-2010 flu, when variant never seen before came irritating and kills many more people than regular seasonal flu. The H1N1 today is very similar to the pandemic strain, but now has much less impact now that patients have the opportunity to build immunity against it.

Very young children, however, did not have the same opportunity to build defenses against H1N1.

From 29 & # 39; December 12 pediatric hospital to report statistics to influence admission PHAC recorded 414 & # 39; related hospital & # 39; influence from September, & # 39; above 195 in the autumn & # 39; 2017 and 117 in autumn & # 39; 2016.

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Also increased admissions associated with flu units intensive childcare: 71 s & # 39; now this season compared to & # 39; 35 and 18, respectively, in & # 39; this point in the last two seasons.

The pediatric hospital network at least one documented death of the flu & # 39; & # 39 now in; this season but less than five; grounds & # 39; privacy, the PHAC does not issue exact figures when there are fewer than five deaths.

B & # 39; & # 39 contrasted with; this, the number of & # 39; Outbreaks & # 39; influenza in long-term care homes is decreasing.

In British Columbia, for example, there were only six confirmed outbreaks of influenza facilities long-term care, a considerable decrease from 36 such outbreaks so far this season and 63 last season before that, by Danuta Skowroński, head of epidemiology for respiratory pathogens program influence and emergency at the BC Center for Disease Control.

"Three years ago was the last time we had a dominant season for H1N1 outbreaks seen much less of the facility & # 39; long-term care than seen during the 2016-2017 or 2017-2018 seasons," she said.

Theresa Tam, chief public health of Canada, said another anomaly in & # 39; this season the flu began to spread earlier than usual in & # 39; some parts of the country, especially on -Prairies.

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This helps explain why the number of & # 39; laboratory confirmed cases of & # 39; the influence is & # 39; 22 percent higher than in & # 39; that the end of last season, with 13 796 cases recorded since the 29 & # 39; In December, the most recent date for which available figures. This is from 11 275 at the same time last season and in 6180 & # 39; this point in the season & # 39; before.

"Can & # 39; there seems to be more activity in & # 39; this point, but it really early start," said Dr. Tam. "What we do not know is how going to go & # 39; forward. We do not rajnax that top."

Dr. Tam stressed that not too late to get vaccinated against influenza, especially in places like Ontario where the season flu collecting vapors.

Mid year of the effectiveness of the vaccine this year is not expected until the end of January or early February, but Dr. Tam said that early signs indicate that the shot works better this year than last year.

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