Arbovirus, short for arthropod-borne virus, is a name given to viruses that are transmitted by arthropods. Mosquitoes are the most common vectors of arboviral diseases such as West Nile virus in Washington.
Anthrax is caused by a spore-forming bacteria and most commonly occurs in wild and domestic herbivore mammals. It's rare to find infected animals in the United States. People can become infected with anthrax by handling products from infected animals or by breathing in anthrax spores from infected animal products such as wool, hides, leather, or hair.