What was supposed to be a 60-day moratorium on certain experiments involving lab-altered bird flu has now lasted more than eight months. And there's no clear end in sight.
Researchers still disagree on how to best manage the risks posed by mutant forms of highly pathogenic H5N1 bird flu. The altered viruses are contagious between ferrets, which are the lab stand-in for humans. The fear is that these germs could potentially cause a deadly flu pandemic in people if they ever escaped the lab.
Flu is most deadly for children with neurologic problems and disorders, an analysis of swine flu fatalities finds.
The results come from Centers for Disease Control and Prevention researchers who looked at childhood fatalities during the H1N1 flu pandemic of 2009, when there were five times the usual number of deaths.
In all, 43 percent of the deaths occurred in children who had neurologic diseases, such as cerebral palsy and epilepsy, or developmental disorders.