Preparedness Empowers You

It saves lives, property, and time.

Emergencies happen, often with little or no notice. By taking action beforehand you can be prepared for any emergency.

Be Ready Navy!
I am. Are you?

Naval Air Station (NAS) Joint Reserve Base (JRB) New Orleans, La. (Sept. 9, 2005) - Preventative Medicine Technician (PMT), Hospital Corpsman 1st Class, assigned to Forward Deployable Preventive Medicine Unit (FDPMU) East, removes a Light Trap provided by the Centers for Disease Control (CDC) from a tent city area on board NAS JRB New Orleans. The FDPMU is assisting the CDC and the Louisiana Department of Public Health to eliminate vector-borne disease and other insect-related problems associated with Louisiana’s mosquito population. Diseases like West Nile Virus can be transmitted by mosquitoes, which thrive in wet ecological terrain like that inherent to Louisiana. U.S. Navy photo by Journalist 1st Class James Pinsky (RELEASED) 050909-N-2653P-003

West Nile Virus

Hospital Corpsman 3rd Class, a preventive medicine representative at the Naval health clinic at Naval Air Station Corpus Christi, collects pond water for mosquito traps located in base family housing. Clinic preventive medicine staff monitor the on base mosquito population year-round, focusing on the summer months when the insects are more abundant and there is an increased chance of acquiring mosquito-borne illnesses. (U.S. Navy photo by Bill W. Love/Released) 120801-N-KF478-034

West Nile Virus (WNV) is a viral disease that has emerged in temperate regions of North America and presents a threat to both public and animal health. WNV has become established as a seasonal disease that flares up in the summer months and continues into the fall.

Transmission (Spread of Disease)

  • WNV seems to be spread most commonly to humans through the bite of a mosquito that has fed on infected animals.
  • WNV also can be spread through blood transfusions or from mother to child.
  • WNV is not spread through casual contact with people.


  • Approximately 80% of those infected never show any symptoms.
  • Approximately 20% of those infected experience only mild symptoms for a few days.
    • Headache
    • Fever
    • Vomiting
    • Nausea
    • Skin rash
    • Body aches
    • Swollen lymph nodes
  • Less than 1% of those infected with WNV will develop serious symptoms that may last several weeks.
    • High fever
    • Coma
    • Convulsions
    • Headache
    • Stupor
    • Neck stiffness
    • Permanent Paralysis
    • Disorientation
    • Tremors
    • Numbness
    • Muscle weakness
    • Headache
    • Vision Loss
    • Neurological damage


  • If you experience any symptoms, contact your physician.
  • No vaccine or specific antiviral treatments for WNV infection are available.
  • Over-the-counter pain relievers can be used to reduce fever and relieve some symptoms.


  • Wear insect repellent on any exposed skin when outside.
  • Try to wear long sleeves, pants, and socks---clothing can protect from mosquitoes.
  • Be aware of peak mosquito hours in your area.
  • Drain standing water to prevent mosquitoes from multiplying.
  • Maintain screens on windows and doors to prevent mosquitoes from entering buildings.

Where to Find Additional Information


Be Ready Navy—Be informed before, during, and after an incident; make a written family emergency plan; and build an emergency supply kit good for at least three days.

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