Emergencies preparedness, response

Areas with recent local transmission of Severe Acute Respiratory Syndrome (SARS)

9 May 2003

This table, updated daily, is provided to public health professionals and clinicians around the world to assist with the identification and reporting of SARS cases as described in the WHO case definitions.

Country Area Pattern of local transmission
Canada Toronto ++
China Beijing +++
China Guangdong +++
China Hong Kong Special Administrative Region of China +++
China Inner Mongolia Uncertain
China Shanxi +++
China Tianjin Uncertain
China Taipei +++
Philippines Manila ++
Singapore Singapore ++


Recent local transmission has occurred when, in the last 20 days, one or more reported probable cases of SARS have most likely acquired their infection locally regardless of the setting in which this may have occurred.

+ Low
Imported probable SARS case(s) have produced only one generation of local probable cases, all of whom are direct personal contacts of the imported case(s).

++ Medium
More than one generation of local probable SARS cases, but only among persons that have been previously identified and followed-up as known contacts of probable SARS cases.

+++ High
Local probable cases occurring among persons who have not been previously identified as known contacts of probable SARS cases.

Insufficient information available to specify areas or extent of local transmission.