Arboviruses is a topic covered in the Washington Manual of Medical Therapeutics.

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General Principles

  • Arboviruses are arthropod-borne viruses; their major vectors are mosquitoes and ticks. Vector control is important for disease control.
  • The leading cause of arboviral disease in the United States is WNV; other viruses (La Crosse, Powassan, St. Louis encephalitis, Eastern Equine encephalitis) cause sporadic outbreaks.
  • Infections usually occur in the summer months, and most are subclinical. Encephalitis is the most common clinical syndrome.
  • Worldwide, Zika virus, Chikungunya, and Dengue are major causes of morbidity and mortality.

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