Now, just weeks before the height of flu season is expected to hit, public health officials are urging people to get vaccinated as soon as possible.
However, Dr. Izaddoost said this is "fake news". "The Centers for Disease Control can not catch each and every flu strain, and this one was unknown at the time". MedExpress also noted that its "2017-2018 influenza-like-illness (ILI) rates are higher than they have been during the same time period of the past four flu seasons (15 percent in 2017-2018 compared to 11-13 percent in previous years)". She advised bed rest with drinking plenty of fluids for those who do get sick.
Twenty-three flu cases were reported to the Yakima Health District in the last week alone. That's how last year's flu season played out.
While the symptoms remain similar from year to year, strains of the flu virus vary depending on where you live and how much the viruses have changed. There were 157 cases this same time past year. Regina and surrounding area has had 17 confirmed cases so far this flu season.More news: Da Vinci in Abu Dhabi
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What's more, American vaccine manufacturers look at the strain hitting Australia when producing the vaccines for the US, but that strain can mutate within the six to eight months the USA industry needs to produce the vaccines.
We also researched bird flu strains by visiting a New England shoreline each year to take samples from birds that travel from the southern tip of South America and take a break to feed on horseshoe crabs. Since Oct. 1, Mountain States hospitals have recorded 80 positive flu cases. "It mutates as it goes from person to person, that's why it's so hard to predict what season we'll have". Although it is hard to predict an influenza season, the authors noted that when A (H3N2) viruses was the dominant influenza strain in past seasons, hospitalizations and deaths were more common and the effectiveness of the vaccine was lower. As health officials rushed to contain the outbreak, the CDC admitted that the 2014 flu vaccine did not protect well against H3N2 - it had just seven percent chance of protection.
Vaccines are available at many pharmacies and physicians offices. Vaccinations are also about protecting others. Now circulating viruses seem not to have undergone significant antigenic drift; circulating A (H3N2) viruses are antigenically less similar to egg-grown A (H3N2) viruses used for most U.S. influenza vaccine production.