The upward trend charted during the first 3 weeks of the SARS outbreak reveals why the epidemic worried epidemiologists. Daily updates showing cumulative totals are available at www.who.int and www.cmaj.ca. No cases were reported on Mar. 23.
The upward trend charted during the first 3 weeks of the SARS outbreak reveals why the epidemic worried epidemiologists. Daily updates showing cumulative totals are available at www.who.int and www.cmaj.ca. No cases were reported on Mar. 23.