1. The trend chart includes variants classified by the World Health Organization as current or former variants of interest (VOI), variants under monitoring (VUM), key domestic variants, and others (e.g. recombinant variants). 2. In the future, variant information may be adjusted due to factors such as the inclusion of new variants by the WHO, reclassification/renaming of variants, or the need for enhanced monitoring.

The most statistics are updated daily at 8:30 a.m.; the last week's data of emergency department (RODS) and national health insurance are updated every Monday and Tuesday

Example of citation: "Taiwan National Infectious Disease Statistics System [Internet]. Taipei (Taiwan): Taiwan Centers for Disease Control; c2014 [updated 2014 Apr 13; cited 2014 Apr 15]. Available from: http://nidss.cdc.gov.tw/en/."