TRACKING SARS ONLINE

Severe Acute Respiratory Syndrome (SARS), a previously unknown illness traced to China and implicated in at least 53 deaths, is a "worldwide threat," according to the World Health Organization (WHO). With the disease and news about it moving rapidly, the Web is an ideal place to keep an eye on the malady.

WORLD HEALTH ORGANIZATION

WHO, which is coordinating international efforts to control SARS, offers a lean, measured look at the latest stats, answers basic questions and, most helpfully, provides a daily summary of progress of both the disease and the WHO's investigative efforts. www.who.int/csr/sars/en/

CDC

Not as up-to-the-minute as the WHO site, the CDC's SARS page contains a comprehensive collection of links to travel advisories, CDC press releases, information for doctors and international health resources that provide country-specific updates and details of the outbreak. www.cdc.gov/ncidod/sars/

YAHOO NEWS

At this site, a click on "Health" and another on "SARS" under "Full Coverage" (left side of both pages) takes you to a mother lode of international news and editorials, from the Bangkok Post to the New York Post. A wide-angle, frequently updated view of the SARS outbreak, this site also links to the sites above. http://news.yahoo.com

BOTTOM LINE

Being informed can't prevent SARS, but it can reduce needless anxiety -- or provoke appropriate caution -- about it.