Of the 39 probable cases in the United States, 37 occurred in travelers to parts of the world where SARS transmission is occurring, one occurred in a health care worker, and one was a household contact. So there is still no evidence of community spread.
Travel Advisory Update
The World Health Organization has updated their SARS travel warnings, postponing all but essential travel, to include Beijing and Shanxi Province in China and to Toronto Canada. This extends the previous warning about traveling to Hong Kong Special Administrative Region and Guangdong Province, China.The CDC is 'not including Toronto in the list of countries where travel restrictions are appropriate.'

