GRAYSON CO., TX -- The Grayson County Health Department says its investigating about 40 Norovirus-like cases.
Director John Teel says around 30 of those individuals were in La Mesa this week.
He says the viral intestinal illness appears to be food bourne.
However, Teel says the origin is unknown at this time.
La Mesa has been closed by the health department but Teel says its owners are being cooperative and that the restaurant has received an A grade during its last two food inspections.