01 May 2003
| Country | Area |
| Canada | Toronto |
| China | Beijing, Guangdong, Hong Kong Special Administrative Region of China, Inner Mongolia, Shanxi, Taiwan Province, Tianjin |
| Mongolia | Ulaanbaatar City |
| Singapore | Singapore |
An "Affected Area" is defined as a region at the first administrative level where the country is reporting local transmission of SARS, within the last 20 days.