First influenza exposure dictates lifelong ability to fight the virus, study suggests

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Researchers say the results of a study suggest exposure to one of the two flu strains that circulate every year imprints itself on a person’s immunity and disproportionately affects their lifelong response to the flu

This translation has been automatically generated and has not been verified for accuracy.Researchers at two Canadian universities say the first type of influenza virus people are exposed to in early childhood dictates their ability to fight the flu for the rest of their lives.

The researchers at McMaster University in Hamilton and the University of Montreal say their findings could allow public health officials to assess who might be at greater risk in any given year, based on their age and the type of viruses that were dominant when they were born.Their study is published this week in the journal Clinical Infectious Diseases and based on data from the 2018-19 flu season, which was highly unusual because both strains of influenza A dominated at different times.

“Understanding how their prior immunity either leaves them protected or susceptible is really important for helping us to identify the populations who are most at risk during seasonal epidemics and new outbreaks,” he said in a release. “As H3N2 replaced H1N1, the drop in incidence for the 40 to 49 years’ age group noted during the previous 2017-18 season reappeared, while the incidence for older individuals rose markedly with age,” the study says.

 

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...and unfortunately the toxic ingredients in vaccines play havoc to immune systems especially young still developing ones in children.

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