# 4930
Last night in their news scan, CIDRAP featured three stories on antiviral use, effectiveness, and cases of resistance.
All three are of considerable interest, so follow the provided links to read them in their entirety.
Multidrug-resistant 2009 H1N1 virus reported in teenager
A 2009 H1N1 flu virus that contributed to the death of a 14-year-old girl was resistant to three neuraminidase inhibitors, pointing up the need for new types of antivirals, according to a letter in the Oct 15 Clinical Infectious Diseases (CID).
2009 H1N1 can gain Tamiflu resistance in less than 2 days
Physicians from Singapore say they determined that the 2009 H1N1 virus became resistant to oseltamivir in less than 48 hours after a 28-year-old woman began receiving the antiviral, much faster than reported in other cases, according to a report in Emerging Infectious Diseases (EID).
Early antivirals failed to protect some patients in Japan
Researchers writing in Clinical Infectious Diseases (CID) report that significant percentages of Japanese patients who had fatal or severe cases of 2009 H1N1 flu during the pandemic had received early antiviral treatment (oseltamivir or zanamivir).
