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West Nile Illness


West Nile fever:
West Nile fever is a flu-like illness that can range from mild to moderately severe.  It is caused by West Nile virus, which is carried by mosquitoes.  The illness generally occurs 2-6 days following the bite of an infected mosquito (but can occur as long as 2 weeks afterward).

Some people notice a rash.  West Nile fever generally lasts from 2-7 days.  Antibiotics will not work on West Nile fever.
West Nile neurologic disease:
West Nile virus occasionally causes a severe disease that affects the central nervous system.  The symptoms of neurologic disease can range from:
  • symptoms of meningitis (inflammation of the spinal cord): fever, severe headache, and stiff neck to
  • symptoms of encephalitis (inflammation of the brain): fever, severe headache, and possibly confusion, convulsions, or coma
  • symptoms of polio: paralysis
These symptoms can be caused by viruses other than West Nile, and can also be symptoms of other serious diseases such as stroke.

Some people with neurologic disease will die.  Others will have temporary, long-term, or permanent nerve damage.  Antibiotics will not work on West Nile neurologic disease.
Contact Information

Physical Address
22 South State St.
2nd Floor
Clearfield, Utah 84015
For a map, click here.

Mailing Address
Davis County Health Department
Attn: Communicable Disease & Epidemiology Division
P.O. Box 618
Farmington, Utah 84025

Phone Number
(801) 525-5200

Hours
Monday – Friday
8:00 a.m. to 5:00 p.m. (except legal holidays)

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