(AP) — Health authorities in Taiwan are quarantining 5,000 people while looking for the source of two coronavirus cases linked to a hospital. Officials said they have not been able to identify how the husband and wife became infected after a brief hospital stay. Those asked to quarantine include patients who were discharged from Taoyuan General Hospital from Jan. 6 to 19 and their caregivers. The cluster has grown to 15 cases. Taiwan has been applauded for its swift and sustained efforts to contain COVID-19, with just seven deaths and fewer than 900 confirmed cases, despite its proximity to China, where the pandemic began.