Health Minister Daniel Salas issued a stern warning to the Costa Rican public after his agency received numerous reports of businesses filled to capacity the previous night.
The new instructions are in addition to previously announced measures suspending mass gatherings and telling employees from working from home when possible.
Latin American countries stepped up measures to slow the advance of the coronavirus Wednesday, announcing a slew of restrictions on travelers from the worst-affected countries and shutting down major sports events.
Costa Rica will not receive a pair of cruise ships that planned stops in the Pacific city of Puntarenas as their operators adjust itineraries amid the coronavirus epidemic.