Respiratory Viral Activity

Respiratory Viral Isolates in Southern California

RSV is finally here!

Influenza has slowed to almost a complete stop in LA County. But now it is time for the rise of RSV. We are approaching 20-30% positivity (well above endemic levels of 10%).
This is a bit later than last year but overall numbers are comparable. Interestingly, from the few sites that report out positive human metapneumovirus (hMPV), those numbers are running almost as high as RSV! This is an important (and under recognized) respiratory virus producing symptoms similar to those of RSV.
Stay tuned for further updates in numbers.