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Contra Costa County detects first West Nile virus-infected mosquitoes of year

The Contra Costa Mosquito and Vector Control District has detected the first West Nile virus-infected mosquitoes of the year in the county, officials announced Wednesday.  The infected mosquitoes were collected from a trap near Pacheco Marsh in the Martinez waterfront area, according to the district.  “West Nile virus is typically detected in the local mosquito […] The post Contra Costa County detects first West Nile virus-infected mosquitoes of year appeared first on Local News Matters .

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Why it mattersCalifornia

The Contra Costa Mosquito and Vector Control District has detected the first West Nile virus-infected mosquitoes of the year in the county, officials announced Wednesday.  The infected mosquitoes were collected from a trap near Pacheco Marsh in the Martinez waterfront area, according to the district.  “West Nile virus is typically detected in the local mosquito […] The post Contra Costa County detects first West Nile virus-infected mosquitoes of year appeared first on Local News Matters .

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According to Local News Matters’s source item, Contra Costa County detects first West Nile virus-infected mosquitoes of year, The Contra Costa Mosquito and Vector Control District has detected the first West Nile virus-infected mosquitoes of the year in the county, officials announced Wednesday.  The infected mosquitoes were collected from a trap near Pacheco Marsh in the Martinez waterfront area, according to the district.  “West Nile virus is typically detected in the local mosquito […] The post Contra Costa County detects first West Nile virus-infected mosquitoes of year appeared first on Local News Matters .

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The development sits in VINI’s California file for readers following state policy, regional institutions, courts, markets, public services, and California communities. The original report is linked so readers can check the source account, follow later updates, and compare new coverage against the first published record. The source item is dated 2026-06-25T08:00:00+00:00.

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Primary source: Contra Costa County detects first West Nile virus-infected mosquitoes of year via Local News Matters. VINI cites and links the source; it does not reproduce the publisher’s full article text without rights clearance.

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