Flu viruses are constantly mutating and
every year the seasonal flu shot is updated to keep up with the viruses that are making people sick.
Not exact matches
For the past three
years, the U.S. economy has been prone to bouts of
seasonal flu in the Spring.
Picente has directed the health department to hold two immunization clinics for adults 19 -
years of age and older in that community in the coming weeks; the first for H1N1 shots and the second for
seasonal flu vaccinations.
Widespread vaccination — which is why U.S. health officials are debating a nationwide swine
flu vaccination program that would mandate the creation of 600 million immunizations, more than five times the 115 million vaccines administered each
year to battle the
seasonal flu.
It causes
seasonal flu in every subsequent
year.
The company plans in October to conduct a separate test specifically to study the
seasonal flu vaccine's effectiveness among 480 elderly participants (a demographic often encouraged to get
seasonal flu shots), and Phase III efficacy trials across a larger set of demographics are scheduled to begin early next
year.
Novavax says that during Phase IIa of
seasonal flu vaccine testing, which began in May, it was able in the majority of people tested to surpass the FDA's requirements for producing enough antibodies to protect the body from the H3N2, H1N1 and B viruses — all of which were common enough a
year ago to be used to develop
flu vaccines for the 2008 to 2009
flu season.
Every
year, between 250,000 and 500,000 people of all ages die worldwide after getting
seasonal flu, partly because few people are vaccinated for it.
Either approach will take at least another five
years of testing before it would be ready to fight
seasonal flu, Nabel says.
«The influenza field is largely fixated on studying pandemic or potential pandemic viruses, but those viruses only infect a few dozen people every
year whereas
seasonal flu infects millions — and yet we don't study human influenzas closely enough.»
But it seems that while the number of deaths in the US was comparable to a bad
seasonal flu, swine
flu claimed three times as many
years of life because the victims were so young.
An analysis of 10
years» worth of data on human influenza B viruses has shed new light on the pathogen which can cause the
seasonal flu.
While this
year's vaccine is a much better match to the circulating
seasonal strains of influenza, the shifty nature of the virus and the need to pick the viruses used to make global vaccine stocks well before the onset of the
flu season can make vaccine strain selection a shot in the dark.
For many
years, researchers occasionally saw H274Y appear in
seasonal flu patients while they were being treated, but those viruses tended to not be very good at spreading to other people, so resistance never really caught on.
Russell said that he and his colleagues found that each
year since 2002 new strains of influenza A (H3N2), the most infectious variety of
seasonal flu, originated in «the east and Southeast Asian circulation network,» which spans from Malaysia and western Indonesia to Korea and Japan.
This raises concerns that
seasonal flu vaccine, which some companies are still making, may be useless when the northern hemisphere's
flu season arrives later this
year.
Each
year, the U.S. Food and Drug Administration, in collaboration with the Centers for Disease Control and Prevention and the World Health Organization, decides which strains of influenza virus to include in the
seasonal flu vaccine.
If it's because of the panic surrounding the swine
flu, he recommends looking at the facts: In the United States,
seasonal flu kills tens of thousands more people every
year than swine
flu has so far in 2009.
Lavila Weckwerth, of Watervliet, Mich., has gotten a
seasonal flu shot for the past seven
years — despite being diagnosed with fibromyalgia three
years ago — and has never noticed any side effects.
I wrote a couple of posts last
year about how the
seasonal flu is really just Vitamin D deficiency disease and why I take a fermented cod liver oil supplement every day even when I get good doses of midday Florida sunshine.
You should note that canine influenza is not
seasonal, like the human
flu, and can be contracted
year - round.
Seasonal flu (the common
flu) season occurs every
year.
Over the past couple
years, in both 2015 and 2016, the first quarter represented the high point for occupancy in each
year, as first quarter data typically shows an uptick in occupancy due to
seasonal factors, such as the
flu as admissions to skilled nursing properties can increase during that time of
year.