New Canadian Research Shows Flu Vaccines Substantially Enhance Swine Flu Risk

[Guest guest]

New Canadian Research Shows Flu Vaccines Substantially Enhance Swine Flu

Risk

Dr Meryl Nass, MD

_http://www.theoneclickgroup.co.uk/news.php?start=4000 & end=4020 & view=yes & id=

5342#newspost_

(http://www.theoneclickgroup.co.uk/news.php?start=4000 & end=4020 & view=yes & id=5342\

#newspost)

Six studies from Canada consistently found that prior year vaccination in

2008/09 for seasonal influenza was associated with a 1.4- to 2.5-fold

increased risk for hospitalization for H1N1 infection, said Naveed Z. Janjua,

MD, from the British Columbia Centre for Disease Control. " As for the

mechanism behind those differences, studies in swine suggest that a vaccine

that

induces " nonneutralizing or subneutralizing concentrations of antibody can

enhance the infection rather than protect from that infection, " Dr. Janjua

said. Dr. Skowronski suggested that the Canadian findings might be more

rigorous than similar studies from the United States and Mexico that reached

different conclusions on the effect of vaccination for seasonal influenza on

H1N1 infection. Good immunization records and the use of a single brand of

vaccine within a geographic region also are factors contributing to the

rigor of the Canadian analysis, she pointed out. The studies were conducted

with funding from various Canadian government agencies.

Dr Meryl Nass MD, reporting on Medscape & PLOS

Related