Spike In US Pneumonia and Influenza Deaths. -- (Recombinomics)
....The low number of positives in the US may reflect a sampling problem. Most tested samples have been from hospitalized patients, but the fatal and severe cases frequently are associated with a rapid movement of virus to the lungs and a high false negative rate. A high false negative rate would keep lab confirmed cases artificially low and preclude aggressive antiviral treatment. Similarly the increase in H274Y may also impact treatments involving Tamiflu....
Since most H1N1 fatalities have been young adults, an age distribution on fatal cases would be useful.