RFI - Norwalk Virus Direct Test

[richard d. eng]

I know the genome for Norwalk Virus has been identified. We have many 
outbreaks in the winter due to this virus. EM, a labour intensive test, 
is the only way to diagnose infections due to this agent. Is anyone 
aware of any other direct test commercially available for identifying 
this agent? EIA, PCR? A cost effective direct test for this agent is 
much needed.