Health officials in Albuquerque say the West Nile virus has been detected in some mosquitoes in Bernalillo County.
They say it's the first positive West Nile detection so far this year in the county.
The mosquitoes were collected through routine monitoring.
Health officials say an extremely wet spring plus a heavy monsoon season have created extensive mosquito breeding habitat throughout the county.
They also say mosquito numbers are significantly higher than experts have seen in the last three years.
West Nile virus symptoms are fever, nausea, headache and muscle aches.
In rare cases, West Nile virus can cause meningitis or encephalitis.
Health experts say people older than 60 are at most risk for serious disease from West Nile virus.
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