Thursday, April 09, 2009

Respiratory Viral Activity In Southern California

We are certainly winding down RSV (and influenza) season in Southern California. We had a late and slow influenza season and are just now seeing the tail end with more B in the community than A (we had twice as many B isolates last week than A, although the numbers are quite small). Interestingly we are also seeing some late season human metapneumovirus. Only two of our sites report detection of this virus, but hopefully next season we will have more sites performing PCR for this agent. Last week we had more hMPV isolates than RSV, influenza, adenovirus and parinfluenza combined!! We have now been <10% for two consecutive weeks, so officially we are OUT of endemic RSV, but stay tuned for detection of late season influenza and hMPV!


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