Chelmsford 2010:

Mosquitoes with West Nile Virus were confirmed August 17 in A surveillance trap set by CMMCP NEAR Route 3.

CMMCP catch basin maps were checked and basins were retreated in the area. The areas below were sprayed on August 18 after consultation with the Chelmsford Board of Health.

Additional surveillance traps have been set in the area to gauge population densities and for additional virus testing if possible.