West Nile virus (West Nile encephalitis) is a brain infection caused by a virus. People become infected with the virus after they're bitten by a mosquito that has fed off of a bird that's infected with the West Nile virus. Symptoms in humans include fever, headache, rash, body ache, and swollen lymph nodes. Treatment for a West Nile virus infection involves supportive care. Read more: West Nile Virus Article
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Picture of West Nile Virus
The mosquito-borne virus that causes West Nile fever. One of the flaviviruses, a family of viruses also responsible for dengue,...
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Related Disease Conditions
Headaches can be divided into two categories: primary headaches and secondary headaches. Migraine headaches, tension headaches, and cluster headaches are considered primary headaches. Secondary headaches are caused by disease. Headache symptoms vary with the headache type. Over-the-counter pain relievers provide short-term relief for most headaches.
Insomnia (Symptoms, Causes, Remedies, and Cures)
Insomnia is the perception or complaint of inadequate or poor-quality sleep because of difficulty falling asleep; waking up frequently during the night with difficulty returning to sleep; waking up too early in the morning; or unrefreshing sleep. Secondary insomnia is the most common type of insomnia. Treatment for insomnia include lifestyle changes, cognitive behavioral therapy, and medication.
Bug Bites and Stings
Bug bites and stings have been known to transmit insect-borne illnesses such as West Nile virus, Rocky Mountain spotted fever, and Lyme disease. Though most reactions to insect bites and stings are mild, some reactions may be life-threatening. Preventing bug bites and stings with insect repellant, wearing the proper protective attire, and not wearing heavily scented perfumes when in grassy, wooded, and brushy areas is key.
Swollen Lymph Nodes (Glands)
Lymph nodes help the body's immune system fight infections. Causes of swollen lymph nodes (glands) may include infection (viral, bacterial, fungal, parasites). Symptoms of swollen lymph nodes vary greatly, but may include fever, night sweats, toothache, sore throat, or weight loss. Causes of swollen lymph nodes also vary, but may include cancer, the common cold, mono, chickenox, HIV, and herpes. The treatment of swollen lymph nodes depends upon the cause.
Ticks are known transmitters of disease to humans and animals. Tick-borne diseases include Lyme disease, Rocky Mountain spotted fever, Q fever, tularemia, babesiosis, and Southern tick-associated rash illness. Infected ticks spread disease once they've bitten a host, allowing the pathogens in their saliva and mouth get into the host's skin and blood. Tick bites are typically painless, but the site of the bite may later itch, burn, turn red, and feel painful. Individuals allergic to tick bites may develop a rash, swelling, shortness of breath, numbness, or paralysis. Tick bite treatment involves cleaning and applying antibiotic cream.
Fatigue can be described in various ways. Sometimes fatigue is described as feeling a lack of energy and motivation (both mental and physical). The causes of fatigue are generally related to a variety of conditions or diseases, for example, anemia, mono, medications, sleep problems, cancer, anxiety, heart disease, and drug abuse.Treatment of fatigue is generally directed toward the condition or disease that is causing the fatigue.
Zika Virus (Zika Fever)
The Zika virus is transmitted by the bite of an infected Aedes mosquito. Symptoms and signs of a Zika virus infection include conjunctivitis, headache, joint pain, fever, rash, and muscle aches. Treatment for Zika virus infections aims to alleviate symptoms.
Acute Flaccid Myelitis (AFM)
Acute flaccid myelitis (AFM) is a condition that affects the nervous system, causing weakening of the muscles and reflexes. Adenoviruses, poliovirus, non-polio enteroviruses, and West Nile virus can cause AFM. Symptoms and signs include drooping eyelids, difficulty swallowing and moving the eyes, facial weakness, and slurred speech. There is no treatment for acute flaccid myelitis.
Depression is an illness that involves the body, mood, and thoughts and affects the way a person eats and sleeps, the way one feels about oneself, and the way one thinks about things. The principal types of depression are major depression, dysthymia, and bipolar disease (also called manic-depressive disease).
Fever in Adults and Children
Although a fever technically is any body temperature above the normal of 98.6 F (37 C), in practice, a person is usually not considered to have a significant fever until the temperature is above 100.4 F (38 C). Fever is part of the body's own disease-fighting arsenal; rising body temperatures apparently are capable of killing off many disease-producing organisms.
Tremor is the involuntary movements of one or more parts of the body. Causes of tremor include neurological disorders, neurodegenerative diseases, drugs, mercury poisoning, overactive thyroid and liver failure. There are several types of tremor. Treatment depends upon the type of tremor and availability of medications for the condition.
The word "rash" means an outbreak of red bumps on the body. The way people use this term, "a rash" can refer to many different skin conditions. The most common of these are scaly patches of skin and red, itchy bumps or patches all over the place.
Treatment & Diagnosis
- Swollen Lymph Nodes (Lymphadenopathy)
- Fatigue, Tiredness, and Lethargy
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- West Nile Virus
- What Are the Symptoms of West Nile Virus in Humans?
- How Do You Treat West Nile Virus?
- Is West Nile Deadly?
- How Does a Doctor Diagnose West Nile Virus?
- West Nile Fever ... in New York?
- West Nile Virus Was Cause of New York Outbreak
- West Nile: Halting West Nile By Transfusion
- What Is a Hospitalist?
- West Nile Virus Infection Symptoms and Risk Factors
- Bug Bite Treatment
Prevention & Wellness
- Exposure to Insecticide Might Explain Cuba 'Sonic Attack'
- 2019 Sees Big Drop in U.S. West Nile Infections: CDC
- Experts Warn of Mosquito-Borne Brain Infection in Florida
- Chinese Scientists Cut Local Numbers of Dangerous Mosquito by 94%
- It's Mosquito Season: Here's How to Protect Yourself
- New, Natural Pesticides Effective Against Mosquitoes: Study
- Zika, West Nile Cases Reported in Alabama
- Health Tip: Understanding West Nile Virus
- Thirsty Mosquitoes May Bite More in Droughts
- U.S. Illnesses Tied to Ticks, Mosquitoes Are Soaring
- West Nile Virus May Pose Zika-Like Threat to Fetus
- West Nile's Long-Term Bite: Impact on Brain May Last Years
- Some U.S. Olympians Got West Nile in Brazil, But Not Zika
- Harvey's Floodwaters Harbor Many Health Hazards
- Not All Mosquitoes Need Standing Water to Breed: Study
- New Technology Makes Gene Mapping Cheaper, Faster: Study
- Drought May Beckon Bigger West Nile Outbreaks
- Lab Vaccine Shields Mice Against Zika Virus
- U.S. Death Toll From Infectious Diseases Unchanged: Study
- West Nile's Long-Term Death Toll May Be Higher Than Thought
- DNA-Based Vaccine Guards Against Zika in Monkey Study
- When It Comes to West Nile, Robins Do It, Cardinals Don't
- Latin America Zika Outbreak Should 'Burn Out' Within 3 Years, Scientists Say
- Study Suggests Aerial Pesticide Spraying Tied to Higher Autism Rates
- Zika Coming: Some of U.S. Lacks Mosquito Control
- Zika Virus: What You Should Know
- West Nile Virus Most Common Mosquito-Borne Illness in U.S.
- As Mosquito-Borne Illnesses Threaten U.S., Less Money Spent Fighting Them
- New System Targets Germs in Donated Blood Plasma
- EPA Unveils New Bug Repellant Labeling
- 1st Case of Locally Acquired Chikungunya Virus Reported in U.S.
- Guard Your Kids Against Bug Bites This Summer
- Mosquito-Borne Chikungunya Virus May Be Headed for U.S.
- Health Tip: Keep Mosquitoes at Bay
- West Nile Virus Has Cost U.S. Nearly $800 Million: CDC
- Texas Woman's Death Highlights Danger of Overlooking Dengue Fever
- 'Microparticles' Show Promise in Healing Damaged Hearts
- Scientists Seek to Take Bite Out of Mosquito Problem
- Asian Tiger Mosquito Could Spread U.S. Disease
- 2012 Texas West Nile Outbreak Linked to Mild Winter
- West Nile Spraying Safe in Short Term: Study
- Unusual Heat May Have Boosted West Nile Virus Last Year: CDC
- Survival of 'Obamacare' Tops List of Biggest Health News in 2012
- Immune System May Not Weaken With Age: Study
- Latest West Nile Tally: 5,245 Cases, 236 Deaths
- Worst-Ever West Nile Epidemic: What Happened?
- CDC: West Nile Toll Now 5,054 Cases, 228 Deaths
- West Nile Cases Pass 4,700 Mark Nationwide: CDC
- West Nile Cases Pass 4,500 Mark Nationwide: CDC
- West Nile Cases Continue to Climb, CDC Says
- West Nile Cases Continue to Climb, CDC Says
- West Nile Cases Rise by 400 Since Last Week: CDC
- West Nile Cases Still Rising; Death Toll Now at 134, CDC Says
- West Nile Up 35%, but CDC Says Peak Has Passed
- Health Tip: Protect Kids From Mosquito Bites
- West Nile Death, Paralysis Toll Climbs
- Beyond Statistics: 2 Faces of West Nile Virus
- Hurricane Isaac Could Stir Up Allergies, Asthma
- West Nile Virus Cases Continue to Climb
- West Nile Virus: Who's at Risk?
- West Nile Outbreak on Track to be Worst Ever
- New West Nile Threat: Kidney Disease
- Dallas Launches Insecticide Spraying Against West Nile Virus
- North Texas Cities to Start West Nile Spraying Thursday
- Dallas-Fort Worth Brace for West Nile Spraying
- West Nile Virus on the Rise in US: CDC
- West Nile Virus: Questions and Answers
- CDC Warns of Another Emerging Tick-Borne Threat
- Robins Are 'Super-Spreaders' of West Nile Virus, Expert Says
- West Nile Virus in 15 States
- Course of West Nile Infection Charted
- Researchers Find Genes That Influence West Nile Virus
- 117 West Nile Deaths in 2007
- Gene Protects Against HIV, But Ups Risk for West Nile Virus
- Hurricane: Protection from Animal & Insect Related Hazards After a Natural Disaster
- Hurricane: After a Hurricane: Key Facts About Infectious Disease
- Are You a Mosquito Magnet?
- West Nile: Five Common Myths about West Nile Virus
- West Nile Virus: Test for Diagnosis
- Diseases from Animals: A Primer
- Diseases from Animals -- Why Now?
- Diseases From Animals -- What's Next?
- West Nile & Dialysis, a Medical Mystery
- Positive Living Series: Looking After Yourself
- West Nile, A Pregnancy Danger?
- Mosquitoes Not Impressed - Repellant No Good
- West Nile Virus Teleconference from CDC
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