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CDC Warns: 37% Washington Coyotes Carry Expanding Parasite

6/16/2026

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Summary

Story summary

Researchers found Echinococcus multilocularis in 37 of 100 coyotes in Washington, where the animals carried a variant in United States and Canada and the parasite spread westward, raising dog and human cases Midwest.
Dr. Linda Yancey said infections occur in immigrants or travelers from Asia, the Middle East, or North Africa, and Centers for Disease Control and Prevention (CDC) advises avoiding contact with foxes, coyotes, and dogs and recommends deworming.

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Story summary

Researchers found Echinococcus multilocularis in 37 of 100 coyotes in Washington, where the animals carried a variant in United States and Canada and the parasite spread westward, raising dog and human cases Midwest.
Dr. Linda Yancey said infections occur in immigrants or travelers from Asia, the Middle East, or North Africa, and Centers for Disease Control and Prevention (CDC) advises avoiding contact with foxes, coyotes, and dogs and recommends deworming.