Questions on Illness

Q: Will I get sick if I become infected with West Nile virus?

A: Three groups of people have a higher risk of serious illness if infected. These groups include: (1) people 50 years of age and older, (2) infants and young children, and (3) people with weakened immune systems, such as those on chemotherapy or those having a hard time fighting infections such as the common cold or flu.

Q: Will I develop immunity to West Nile virus?

A: Most people exposed to West Nile virus will develop immunity with no symptoms or minor symptoms.

Q: What are the symptoms for most people infected with West Nile virus?

A: General symptoms include fever, headache, muscle aches, joint pain, and fatigue.

Q: What is the incubation period in a human?

A: The incubation period is 5 to 15 days after exposure.

Q: How will I know if I should see my physician?

A: Most people will not require professional medical care. Only 1% of those infected with the virus will develop severe symptoms resulting in the need for medical care. These symptoms will be the same as above, but more severe, and may include generalized weakness, stiff neck, severe headache, high fever, disorientation, tremors, and/or convulsions.

Q: Is a pregnant woman at risk if she gets West Nile virus?

A: There is no documented evidence that a pregnancy is at risk due to infection with the virus.

Frequently Asked Questions About West Nile Virus

General Questions
Questions on Illness
Questions on Birds and Reporting
Questions on Pets (Dogs, Cats, Birds)
Questions on Horses
Questions on Mosquitoes
Questions on Prevention (Mosquitoes, Environment)
Questions on DEET