Please review the health advisory regarding severe respiratory illnesses reported to CDC among young to middle-aged adults with influenza A/H1N1 infections here.

The primary purpose of this advisory is to remind clinicians to treat suspected influenza in high-risk outpatients, those with progressive disease, and all hospitalized patients with antiviral medications as soon as possible, regardless of negative rapid influenza diagnostic test (RIDT) results and without waiting for RT-PCR testing results. Early antiviral treatment works best, but treatment may offer benefit even when started more than 48 hours after symptom onset in hospitalized patients.

No increase in severe influenza infections has been noted so far in North Carolina; influenza activity in the state remains low overall. Influenza surveillance data for North Carolina are updated weekly at