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Identification and control are the priority
  1. G Rezza
  1. Istituto Superiore di Sanità, Viale Regina Elenà 299, 00161 Rome, Italy;

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    The global crisis brought about by the sudden appearance of the severe acute respiratory syndrome (SARS) seems to be over. The rapid and efficient control measures triggered by the alert launched by the World Health Organisation (WHO) have lowered the coefficient of reproduction to below one in all of the outbreak areas, and as of this writing more than 20 days have passed since the last case of SARS was reported. None the less, we do not know whether or not SARS has been eradicated. It is possible that SARS-CoV continues to be transmitted at a low level among humans or that it persists in an animal reservoir …

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