SANTA CLARA, Calif. -- For at least the next three weeks, the San Francisco 49ers are a team without a home.

That's because Santa Clara County, home of the 49ers and Levi's Stadium, issued enhanced COVID-19 guidelines for professional, collegiate and youth sports on Saturday afternoon that effectively puts a three-week ban on any contact sports taking place in the county.

Saturday's announcement comes in the wake of rising COVID-19 cases in California and the Bay Area.

The ban and other related guidelines, including a 14-day quarantine for anyone traveling to the county from more than 150 miles away, is set to begin Monday.

"All recreational activities that involve physical contact or close proximity to persons outside one's household, including all contact sports, will be temporarily prohibited," the order said. "People can continue to engage in outdoor athletics and recreation where social distancing can be maintained at all times."

The 49ers currently have two home games scheduled within that three-week window, Dec. 7 against the Buffalo Bills on Monday Night Football and Dec. 13 against the Washington Football Team. Under the rules, the team would need to find an alternate place to play those games as well as to hold their practices.

"We are aware of the Santa Clara County Public Health Department's emergency directive," the 49ers said in a statement. "We are working with the NFL and our partners on operational plans and will share details as they are confirmed."

James Williams, counsel for Santa Clara County, made it clear in a news briefing that nobody is exempt from the new rules.

"[This] will temporarily suspend activities that require direct physical contact or interaction in Santa Clara," Williams said. "So, that means that for those teams, they will not be able to play games or have practices where they have direct contact within the county."

Williams said the 49ers and other teams in the county have been in contact with county officials. The team had no comment early Saturday afternoon but is in the process of gathering information to understand what comes next and potential options to continue its season.

While there are some obvious potential alternative sites to play in the Bay Area, it is not yet known how viable those are or whether further shutdowns will be forthcoming in those counties.

The new health guidelines aren't limited to the 49ers, either. Stanford and San Jose State football and basketball, Santa Clara basketball and the NHL's San Jose also play home games in Santa Clara County. Stanford has a home game scheduled for Dec. 12 while San Jose State has home games set for Dec 5 and Dec. 12.

Stanford said in a statement that they are aware of Santa Clara County's announcement and remain "in close communication with University and County officials at this time on appropriate next steps."

According to County officials, as of Saturday, there were 760 new cases of COVID-19 and 239 COVID-related hospitalizations -- 71 of whom are in the ICU. Both the number of new cases and COVID-related hospitalizations set new records for the highest single-day counts since the outset of the pandemic.

"I am gravely concerned by the continuing surge in COVID-19 cases and hospitalizations," Santa Clara County Health Officer Dr. Sara Cody said in a statement. "The number of patients hospitalized with COVID-19 in our county has doubled in just the past couple of weeks, and we are at risk of exceeding our hospital capacity very soon if current trends continue.

"During this critical time of surging COVID-19 transmission in our community, I urge every resident to exercise caution and to the greatest extent possible, minimize contact with anyone outside of your immediate household."