Southern California Respiratory Viral Isolates

Respiratory Viral Activity

RSV Activity in Southern California

RSV has arrived!

We are now seeing both RSV (at a rate >10%) and Influenza A (both H3N1 and 2009 H1N1). The rates for RSV have increased from 9.4% to 14% and now 19% over the past three weeks. We continue to see a lot of human metpneumovirus (hMPV) as well as the occasional Adeno and Parainfluenza. No significant influenza B is being reported from our various sites.

Respiratory Viral Activity

Not much going on in Southern California!

We have very low numbers of both RSV and Influenza circulating. Our current RSV rates remain below 10% (above 10% is considered endemic) and we have just occasional influenza. We have seen H1N1 influenza in addition to influenza B but at very low rates. The most common virus we are seeing in our testing is human metapneumovirus-approaching 30% of specimens submitted at some institutions!
Stay tuned!