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Mosquito-borne Disease Surveillance
The Council Bluffs Department of Public Health monitors for the presence of diseases carried by mosquitoes from May through September.

With the assistance and support of the Iowa Department of Public Health, the Council Bluffs Department of Public Health maintains a sentinel chicken flock near the river and collects blood samples from the birds weekly. The blood samples are analyzed to determine if viruses which can cause encephalitis in people have been brought into the area or are present in the local mosquito populations.

A light trap is also operated near the river daily to collect mosquitoes. This information can be used to monitor mosquito populations, types of mosquitoes present, whether or not the mosquitoes are carrying viruses and newly emerging viral infections (presence of the Asian tiger Mosquito, spread of the West Nile virus from the Northeast U.S. into Iowa, etc.)