BOZEMAN, Mont. (AP) — Montana Gov. Greg Gianforte has tested positive for COVID-19.

The Republican governor’s office released a statement Monday evening saying that after experiencing mild symptoms a day earlier, Gianforte was tested “out of an abundance of caution.” The first lady, who has not exhibited symptoms, has been tested and is awaiting her results.

Gianforte plans to isolate for 10 days on the advice of his doctor and public health guidance. He also has notified all of the people with whom he has had close contact, according to the statement.

All of the governor’s in-person events have been canceled, and he plans to work from his home in Bozeman. His staff will be be tested for the virus Tuesday.

Gianforte, who received his first dose of a COVID-19 vaccine Thursday, has been tested regularly since he was sworn into office in January. Vaccinations can take some time before they are fully effective.

For most people, the coronavirus causes mild or moderate symptoms, such as fever and cough that clear up in two to three weeks. For some — especially older adults and people with existing health problems — it can cause more severe illness, including pneumonia, and death.