In a written statement earlier on Thursday, the Celtics, not naming Smart, said testing was initiated because of exposure to a known positive case.
Seven players are now known to have tested positive in the NBA.
He reminded people to keep washing their hands, stop touching their faces and avoid unnecessary contact with others.
For most people, the new coronavirus causes only mild or moderate symptoms, such as fever and cough. For some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia.
The players' donations come after Dallas Mavericks owner Mark Cuban announced Wednesday a program to help pay workers.
He also appeared to apologize for an incident with the media that he said came before he knew he was infected.
The 7-foot-1 Frenchman is at the center of why the league has been shut down for the foreseeable future:
(AP) -- The NBA became the first major [...]
(WISH) -- The Golden State Warriors are going to play [...]
Victor Oladipo finished with a season-high 27 points.