JYP Entertainment already told fans Sana is recovering from enteritis at TWICE's dorms, stating, "It's true Sana went to the hospital to get her stomach virus treated. However, she's not hospitalized. She's currently focusing on recovery at the dorms." It seems she's still resting and has not fully recovered.
Since the news of her hospital visit, fans have been wondering about Sana's promotions with the girl group, and according to reports, her schedule will be dependent on her recovery.
Get well soon, Sana!