The Flu Shots Efficiency Is Under Review, Once Again

The Flu Shots Efficiency Is Under Review, Once Again
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The flu season is far from being ended in the US. The H3N2 flu strain which affects the Americans this season appears to be much more resistant than the virologists expected. Another issue has been recently revealed by new tests – The flu shots are only 36% effective.

Statistics do prove the vaccines inefficiency

Experts tried to observe why is this year’s flu season such destructive. They noticed that one of the main contributing factors for this season’s hard-to-combat flu is the flu shots.

This year’s flu shots offer 67% protection against Flu Virus Type A H1N1 and they are only 42% effective against Flu Virus Type B strains in the young adult population.

On the other hand, in children up to 8-year-old, the flu shots showed a 51% efficiency against the H3N2 strain.

Statistically, in other age groups, including elderly of above 65-years-old, the flu shots are ineffective against H3N2 virus strain. And this specific age group is the most affected by flu viruses which may cause in this case secondary complications and may even lead to death.

The reasons why the flu shots are not very effective

Scientists, especially the virologists, consider that the currently used flu shots manufacturing methods are not very good. That’s why, they say, the flu shots suffer such big effectiveness differences from one year to another.

Currently, the flu shots are made using viruses grown in chicken eggs. According to the specialists, the viruses can mutate inside the chicken eggs and so the vaccines will not be effective against the flu virus strains that are actively affecting the population.

Virologists say that there are flu shots manufactured using newer and better methods but not very commonly administered.

This flu season is far from slowing down

The flu is still widespread across the US and the CDC experts aware that the flu season has not yet reached its peak and more hospitalizations and flu-related deaths will occur.


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