The Health Ministry records another 1,476 virus cases since midnight, with the number of serious COVID-19 cases nearing 400.
It says 2,888 new infections were diagnosed on Tuesday, a two-month high.
Of the 20,255 active cases, 393 are in serious condition, 152 of them on ventilators. Another 168 are in moderate condition, with the rest displaying mild or no symptoms.
The death toll stands at 3,031.