West Nile virus accounts for 90 percent of arbovirus illness in the US, Jamestown Canyon and Powassan virus see record numbers in 2017

Arthropodborne viruses (arboviruses) are transmitted to humans primarily through the bites of infected mosquitoes or ticks. In the United States, West Nile virus (WNV) is the leading cause of arboviral disease in the country, according to an MMWR report today. In fact, of the 2,291 cases of domestic arboviral disease in the US in 2017, 2,097, or ["]

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