The emerging "superbug" that causes ear infections in children resists all FDA-approved antibiotics for kids, a new report says. The strain of bacteria can only be treated with an adult medication levofloxacin, which does not have a federal approval.

Michael Pichichero and Janet Casey, who work at the University of Rochester and Legacy Pediatrics in Rochester, N.Y. spotted the drug-resistant strain of Streptococcus pneumoniae bacteria in nine out of about 1,800 Rochester children who had a middle ear infection from 2003 to 2006

The makers of a new nasal spray designed to help prevent ear infections in children say the formulation has shown positive results in lab tests on mice and might offer a safe way to prevent ear infection in children stemming from influenza and other viral infections.

The manufacturers of the spray from St. Jude Children's Research Hospital in Memphis, Tennessee and New York's Rockefeller University say that the yet unnamed spray is not tested on humans. However it was completely successful in preventing ear infections in mice exposed to pneumonia bacteria and the flu virus