ST. LOUIS — The City of St. Louis has declared a public health emergency, prohibiting events with more than 1,000 attendees, excluding schools and religious gatherings.

Mayor Lyda Krewson made the announcement at a Thursday afternoon press conference with city leaders.

So far, Missouri has one confirmed case of COVID-19. A woman in her 20s who had been studying in Italy tested positive for the coronavirus after returning home to the area.

RELATED: How to talk to your kids about the coronavirus

RELATED: Everything we know about coronavirus in the St. Louis area

RELATED: What to do if you think you have coronavirus

The announcement comes a day after many St. Patrick's Day events around the area were postponed or canceled.

Additionally, many universities have made changes to their school year and taken classes to online-only.

Sports leagues and large events have also been canceled or postponed.

RELATED: NCAA cancels March Madness, Frozen Four, other championships

RELATED: MLB suspends spring training, opening day pushed back

RELATED: List of things canceled in St. Louis area due to coronavirus concerns