A paper published recently showed that
the H3N2 vaccine strain with egg - based mutations was less able to mount an immune response against the circulating H3N2 strain.
Not exact matches
To make matters worse, the 2017
vaccine doesn't combat this more severe
strain of
H3N2 very well.
Preliminary estimates by the federal CDC show this year's version of the flu
vaccine is 36 percent effective against all
strains of the flu, but just 25 percent effective against the
H3N2 strain causing most flu cases this winter.
Based on preliminary effectiveness estimates, the CDC estimates that the flu
vaccine is approximately 25 % effective against the
H3N2 strain https://www.cdc.gov/mmwr/volumes/67/wr/mm6706a2.htm.
Annual flu
vaccines are formulated to protect against one type of influenza B and two
strains of influenza A, one
H3N2 strain and one H1N1
strain.
The current crop of seasonal flu
vaccines, which contain H1N1,
H3N2 and B flulike
strains, are egg - based.
Although the world's attention is focused on the novel H1N1 virus causing the swine flu pandemic,
H3N2, a seasonal
strain of influenza, has popped up in many East Asian countries — and some variants in circulation may outfox the seasonal
vaccine in use.
But if the
H3N2 strain in circulation differs substantially from the one used to make the
vaccine, the
vaccine may offer less protection, and more people will get sick than usual.
The
H3N2 strain is one of three in the seasonal influenza
vaccines.
When flu researchers learned about this new sugar - adorned
H3N2 virus in 2014, they made sure to include that
strain in the 2016 — 17 seasonal flu
vaccine so that immunized individuals would mount an immune response against it.
The work, directed by researchers at St. Jude Children's Research Hospital in Memphis, Tenn., found that some study participants who reported receiving flu
vaccines had a strong immune response not only against the seasonal
H3N2 flu
strain from 2010, when blood samples were collected for analysis, but also against flu subtypes never included in any
vaccine formulation.
Statistics released Thursday out of Canada suggest this season's
vaccine is just 17 percent effective againt the
H3N2 strain.
Flu Shot Only Ten Per Cent Effective by Jeffrey Dach MD The Australian Department of Health reported the Flu
Vaccine is only 10 % effective against the predominant
strain of Influenza A (
H3N2).
Even though the flu
vaccine was only 25 percent effective against the severe
H3N2 strain that caused the most illness, the
vaccine could have been even less effective and still saved tens of thousands of lives, the researchers said.
Even though
H3N2 has mutated, the flu
vaccine should still be effective against the rest of the
strains it covers, Dr. Schaffner stresses.
Required
Vaccines and tests for boarding with us are: Dogs - Negative fecal on file within 6 months, Rabies, Bordetella vaccine, Distemper Parvo vaccine, both strains of the Influenza vaccines (H3N2, H3N8) negative Heartworm test within the last year and must be on Heartworm and Flea preve
Vaccines and tests for boarding with us are: Dogs - Negative fecal on file within 6 months, Rabies, Bordetella
vaccine, Distemper Parvo
vaccine, both
strains of the Influenza
vaccines (H3N2, H3N8) negative Heartworm test within the last year and must be on Heartworm and Flea preve
vaccines (
H3N2, H3N8) negative Heartworm test within the last year and must be on Heartworm and Flea preventative.
It is not known at this time whether the H3N8
vaccine will offer any protection against the
H3N2 strain.
Introducing VANGUARD ® CIV
H3N2 / H3N8, a bivalent canine flu
vaccine with demonstrated safety and efficacy for protection against both highly contagious
H3N2 and H3N8
strains of canine influenza virus (CIV).
It is not known whether the H3N8
vaccine will offer any protection against the
H3N2 strain.
There is a
vaccine for the H3N8
strain, one for the
H3N2 strain, and a
vaccine that covers both
strains in one shot.
* «There is no way to predict whether it will be CIV
H3N2 or CIV H3N8 that infects your area, so it is better to help protect against both
strains; this bivalent
vaccine allows you do to that efficiently.»
The new bivalent
vaccine helps protect dogs against the two
strains of the virus known to be circulating in the U.S., CIV
H3N2 and CIV H3N8.
The
vaccine must include the
H3N2 strain of Influenza.
We carry a bivalent
vaccine, which protects against both
strains of Canine Influenza (H3N8 and
H3N2).
This March we received the new
H3N2 specific influenza
vaccine which many of our clients are scheduling their dogs to receive in order to protect them from this newest influenza
strain.
There are currently two pharmaceutical manufacturers that offer CIV
vaccines for the H3N8 and
H3N2 strains.
There is now a
vaccine for both the
H3N2 and the older H3N8
strains.
There is now a bivalant
vaccine for both the H3N8 and
H3N2 strains of canine influenza virus.
We have the newly released
vaccine that provides protection against both the H3N8 and
H3N2 Canine Influenza
strains that we are seeing in the reported cases.
UGACVM reported
vaccines for
H3N2 and H3N8, another
strain of the dog flu, have recently come on the market and is recommended for «socially active» dogs.
We carry
vaccines that protect against both
strains of canine influenza virus (H3N8 and
H3N2) to help protect your pet.
Vanguard ® CIV
H3N2 / H3N8 is a canine flu
vaccine that protects against both
strains of the canine influenza virus.
The bottom line: the flu
vaccine developed in 2009 is unlikely to offer any protection against the new
H3N2 strain AND if there is any similarity to the human flu, there is something called antigenic shift.
Dogs should be vaccinated with the 2 -
strain vaccine (
H3N2 & H3N8), followed by a booster 2 - 4 weeks later.
Vaccines against the H3N8 influenza virus — which has existed in this country for more than a decade — are available, but there are differences in the genetic sequences of the two strains that suggest that these vaccines would be poorly effective, or ineffective in protecting dogs against the H3N2 virus infecting dogs in the Midwest
Vaccines against the H3N8 influenza virus — which has existed in this country for more than a decade — are available, but there are differences in the genetic sequences of the two
strains that suggest that these
vaccines would be poorly effective, or ineffective in protecting dogs against the H3N2 virus infecting dogs in the Midwest
vaccines would be poorly effective, or ineffective in protecting dogs against the
H3N2 virus infecting dogs in the Midwest.»
Vaccines are available for both the H3N8 and
H3N2 strains.
This
vaccine pack provides comprehensive coverage against two
strains of the Canine Influenza Virus — H3N8 and
H3N2.
Thankfully there is a
vaccine, which we carry, designed to protect against disease caused by the CIV
H3N2 strain.
Zoetis provides the Vanguard CIV
H3N2 / H3N8
vaccine for protection against both highly contagious
strains of CIV.
Ask your veterinarian about Vanguard ® CIV
H3N2 / H3N8, a single
vaccine that helps protect dogs against both
strains of dog flu in the U.S.
FYI - If your pet has previously received a canine influenza
vaccine, that
vaccine protects against the influenza
strain H3N8, but does not protect against the new
strain,
H3N2.
But until now, the only
vaccines available to our four - legged friends contained killed or inactive viruses of the two canine influenza virus
strains affecting them — the H3N8 and
H3N2.
At this time, it is also unknown whether the current CIV
vaccine, developed to protect against a different
strain of the virus (Influenza A H3N8), will be effective in preventing Influenza A
H3N2.
There was no
vaccine for the H3N2 strain when it started spreading through the Midwest last spring, but Merck Animal Health says it has recently been granted a conditional license for Canine Influenza Vaccin
vaccine for the
H3N2 strain when it started spreading through the Midwest last spring, but Merck Animal Health says it has recently been granted a conditional license for Canine Influenza
VaccineVaccine H3N2.
There is some cross-protection for the H3N8
strain provided by the
H3N2 vaccine, and vise versa, but not as much as we'd like.