The 29th and 43rd cases in Tianjin were tested positive for COVID-19 again during central quarantine after discharged from hospital, and they are now in Haihe Hospital for observation and treatment, according to the Tianjin Centers for Disease Control and Prevention. The 29th case, discharged from hospital on February 13, had been under medical observation in the central quarantine area in Heping District. And the 43rd case, discharged from hospital on February 11, had been under medical observation in the central quarantine area in Baodi District. The two cases were tested positive for the virus again on February 27 and were admitted to Haihe Hospital for a second time.