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What is a Vector?

A "vector" is defined in the California Health and Safety code Section 2002 as "any animal capable of transmitting the causative agent of human disease or capable of producing human discomfort or injury including, but not limited to mosquitoes, flies, mites, ticks, other arthropods, and rodents and other vertebrates." 

Still confused?

Simply put, a vector is a carrier of a pathogen that can be transmitted to people. The types of vector issues vary by geographic region.

The San Gabriel Valley Mosquito & Vector Control District controls for mosquitoes and black flies in its jurisdiction.