REDWOOD CITY — Some indoor businesses and public activities must cease unless they can be modified to operate outside or through offering pick-up services to help contain the coronavirus, the state told San Mateo County officials Saturday.

The order, which will take effect midnight Sunday, was in response to the county being more than three days on a state COVID-19 monitoring list, the county posted on its website.

The spots are shopping malls, gyms and fitness centers; places of worship and where cultural ceremonies take place, such as weddings and funerals; offices for non-critical infrastructure; as well as personal care services, like nail salons, body waxing, hair salons and barbershops.

Shops that offer tattoos, piercings, and electrolysis may not operate outdoors and must close.

Businesses should visit the state website for industry guidance: https://ift.tt/319XbSv.

State officials put San Mateo County on the state watch list, which is used to monitor areas showing troubling signs of the coronavirus spread, on Wednesday.

The county — the last place in the region where people could still visit hair salons and work out in gyms was added to the list after exceeding the state’s threshold for rising cases and hospitalizations.

At least 38 of California’s 58 counties were on the watchlist as of Wednesday, stalling economic reopenings for the vast majority of California’s 40 million residents.

Information about San Mateo County’s response to COVID-19 is at www.smcgov.org.