Daniel J. Denoon
WebMD Health News
Louise Chan, MD
H1N1 swine flu
However, adult findings surprise and delight health officials. Early US study results support yesterday’s report from an Australian study that adults require only one standard dose of the H1N1 swine flu vaccine.
“Americans vaccinated with H1N1 are more likely to be protected sooner than we thought,” HHS Secretary Kathleen Sebelius said at a press conference to announce the findings. Stated. “Now, most people seem to have a strong immune response in 8-10 days. This shortens the window of concern and protects more people much faster.”
Speedy Immune response It was so unexpected that researchers didn’t even look for it in many people. Clinical trial Subject. Some US trials did not test swine flu neutralizing antibodies from the first shot until 21 days later. Fortunately, enough people did.
Also surprising is how good pigs are. Influenza vaccine Worked in US research. H1N1 vaccination Increased the level of protection created by CSL and Sanofi
antibody It is found in 80% to 96% of adults aged 18 to 64 and in 50% to 60% of adults aged 65 and over.
“This is very good news for the H1N1 vaccine program,” said US director Anthony Fauci, MD. National Institute of Infectious DiseasesSaid at a press conference. “There were no serious adverse events. The vaccine is very well tolerated.”
Swine flu race has begun
Currently, swine flu vaccine is applied to people’s arms or nose Full mist An inhaled version of the vaccine will be available. Swine flu is currently widespread in 11 states. All 50 states report cases.
Nearly 60% of U.S. doctor visits last week Flu-like symptoms, Anne Schuchat, MD, Director of CDC Respiratory At a press conference, the Illness Center said. This means that there are as many influenza outbreaks as at the peak of last season.
Forch said plans to begin distributing about 45 million swine flu vaccines in mid-October are still on track. After that, it is expected that it will be possible to administer about 20 million times a week. The United States has purchased a total of 195 million doses. It now seems more than enough to vaccinate all Americans who want it.
Vaccine supply may expand further.By giving a vaccine with an immunopotentiator called AdjuvantAccording to an Australian study, not only half the dose of the vaccine, but the full dose without an adjuvant is effective.
Unfortunately, these adjuvants have not yet been approved by the United States. FDA.. This means it will not be used in the United States during this flu season. However, adjuvants have been approved in Europe and elsewhere and should significantly expand the global supply of swine flu vaccines.
Source: HHS Press Conference, September 11, 2009, below:
- Kathleen Sebelius, US Department of Health and Human Services Secretary
- Dr. Anthony Fauci, Director of National Institute of Infectious Diseases, NIH
- Jesse Goodman, MD, Director, FDA Center for Biologics Evaluation and Research
- Anne Schuchat, MD, Director of the National Centers for Vaccination and Respiratory Diseases, CDC
Clark, TW New England Journal of Medicine, published online September 10, 2009. Greenberg, ME New England Journal of Medicine, published online September 10, 2009. WebMD Health News: “Is 1 Swine Flu Shot Enough?”
© 2009 WebMD, LLC. all rights reserved.
Swine flu vaccination provides immediate protection
Source link Swine flu vaccination provides immediate protection