Two cases of novel coronavirus infection were confirmed in Taiwan Sunday, raising the total number of COVID-19 cases to 28, according to the island's epidemic monitoring agency.
The two patients, father in his 80s and son in his 50s, both have not left Taiwan recently, the agency said in a press release, adding that their infections were likely to be a familial cluster of infection.
The father had a fever on Feb. 6 and was diagnosed with pneumonia on Feb. 9 before his conditions worsened on Feb. 16. The son had similar symptoms on Jan. 31 and was diagnosed with pneumonia on Feb. 8, the press release said.
The authorities are trying to identify the actual infection source. The younger son of the family, who also lived with his parents, had returned from south China's Guangzhou city on Dec. 2 and dined with people having traveled to the mainland during the Spring Festival, the agency said.
The infection source of the last familial cluster of COVID-19 infection, involving the 24th, 25th and 26th patients, remained unclear.
