Below are statistics from the Centers for Disease Control and Contra Costa Mosquito & Vector Control District on West Nile virus.

- 296 human cases of West Nile virus have been reported in the U.S. so far this year; 11 people have died. One in 5 people who are infected will develop a fever along with other symptoms such as headache, body aches, joint pains, vomiting, diarrhea or rash.

- Less than 1 percent of people infected will develop a serious neurological illness. The symptoms of neurological illness can include headache, high fever, neck stiffness, disorientation, coma, tremors, seizures or paralysis.

- Most people are infected from June through September from a mosquito bite.

- Contra Costa County has between three and 11 human West Nile virus cases reported each year.

- In 2006, two Contra Costa residents died from West Nile virus disease

- So far this year, there have been 59 reported human cases of West Nile virus in the state, one in Contra Costa.

For more information, go to www.contracostamosquito.com.

Contact Elisabeth Nardi at 925-952-2617. Follow her at Twitter.com/enardi10.



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