Letters

Severe acute respiratory syndrome: Capture-recapture method should be used to count how many cases of SARS really exist

BMJ 2003; 326 doi: https://doi.org/10.1136/bmj.326.7403.1396 (Published 19 June 2003) Cite this as: BMJ 2003;326:1396
  1. John H Lange, environmental and occupational health consultant (john.pam.lange@worldnet.att.net),
  2. Ronald E LaPorte, professor of epidemiology
  1. Envirosafe Training and Consultants, PO Box 114022, Pittsburgh, PA 15239, USA
  2. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 3512 Fifth Avenue, Pittsburgh, PA 15213, USA

    EDITOR—Parry suggested that the epidemic of the severe acute respiratory syndrome (SARS) is beginning to slow.1 This is probably true as cold and influenza viruses naturally dissipate during the summer (nonflu season2). This observed reduction would include the coronaviruses, which have been estimated to result in around 30% of the reported …

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