Obesity is seen as an independent risk factor for the H1N1 flu virus.
New research in obese mice strongly suggests they are far more susceptible to secondary infections (i.e. pneumonia). It seems that the excess weight interferes with the immune system’s ability to “remember” how to fight off previous similar infections. This kind of “memory” is essential for vaccine effectiveness, too.
PositiveTip: Attaining and keeping a healthy weight may significantly influence the likelihood of severe flu as well as secondary infections.