GRAND RAPIDS, Mich. (AP) — U.S. Rep. Fred Upton announced on Twitter Tuesday that he tested positive for COVID-19.

The tweet said the southwestern Michigan Republican tested positive after taking a routine test.

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Upton reported he was experiencing mild symptoms.

The congressman is vaccinated and has had his booster, he said.

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He will isolate for the next five days as recommended by Centers for Disease Control and Prevention guidelines.

He is the latest member of the Michigan delegation to disclose a COVID infection. Most recently, U.S. Rep. Dan Kildee in January tested positive for COVID-19 in another case of a breakthrough infection.

Other members of the Michigan delegation have previously disclosed positive tests for COVID including U.S. Reps. Tim Walberg and Bill Huizenga, both in 2020.

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