40 states reported widespread flu deaths during the second week of September . One of those areas is California . H1N1 is the predominant strain circulating , which is a deadlier strain . It 's not too late to take steps to protect yourself from catching the flu , says Professor Susan Rehm .
40 states reported widespread flu deaths during the second week of September . H1N1 is the predominant strain circulating , which is a deadlier strain . It 's not too late to take steps to protect yourself from catching the flu , says Professor Susan Rehm .