Electron micrograph of the West Nile virus. Mosquitos carry the West Nile virus. State officials say Vermont's first case of West Nile virus has been confirmed in Brattleboro, Vermont.
Mosquitos carry the West Nile virus. Electron micrograph of the West Nile virus. State officials say Vermont's first case of West Nile virus has been confirmed in Brattleboro, Vermont.
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Electron micrograph of
Mosquitos carry
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Mosquitos carry
Electron micrograph of