| http://www.w3.org/ns/prov#value | - ? ? ? ? ? ? ? 80% of infected people have no symptoms 20% of infected people have symptoms such as fever, fatigue, malaise, nausea, vomiting, headache, eye pain, myalgia lasting 3-6 days About 1:150 people who are antibody positive will develop neuroinvasive disease: meningitis, encephalitis, polio-like acute flaccid paralysis, muscle weakness, ataxia, and seizures People over 50 years old are 10
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