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Lyme Disease Testing: CDC Recommends a Two-Step Process
Lyme disease is rarely acquired in Washington state, and when it is acquired in-state, it is almost always west of the Cascades. If a healthcare provider suspects a person has been exposed to Lyme disease in an endemic area, such as the upper Midwest region, Eastern US, or the West Coast, or to an animal from these regions, the CDC currently recommends a two-tiered process for testing. Both can be done using the same blood sample.