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How can I join the survey?
Households are selected at random from 15 counties throughout Washington state and are sent an invitation to participate in the mail.

Participants must be 0-85 years old. All children, teenagers, and adults of selected households are invited to provide a nasal swab for a COVID-19 test during the first collection. Children and adults ≥10 years old are invited to provide blood for the antibody test.

By collecting random samples from the general population, the survey will provide results that represent all of Washington state.