SAN DIEGO (FOX 5/KUSI)-- Mosquitoes recently collected from the City Heights and Skyline areas in San Diego County have tested positive for the West Nile virus, according to a report released Monday from the County of San Diego.

The virus, which is considered potentially deadly, was previously detected in mosquitoes throughout Rolando and La Mesa in July, according to the report. There was also a group of the insects that tested positive for the virus in Imperial County in July.

The County's Vector Control Program aims to reduce the mosquito activity in City Heights and Skyline by continuing to inspect and treat mosquito breeding sites in the area and subsequently conducting follow-up trapping in the regions.

While the number of mosquitoes has reportedly decreased in La Mesa and Rolando

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