Antimicrobial Agents and Chemotherapy, June 2000, p. 1708-1709, Vol. 44, No. 6
0066-4804/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Departments of Pediatrics1 and Medicine,3 Medical University of South Carolina, and National Nutriceutical Center,4 Charleston, South Carolina, and Procter & Gamble Healthcare, Mason, Ohio2
Received 29 November 1999/Returned for modification 7 March 2000/Accepted 20 March 2000
The purpose of this study was to assess the effectiveness of echinacea for the prevention of experimental rhinovirus colds. Infection occurred in 44 and 57% and illness occurred in 36 and 43% of the echinacea- and placebo-treated subjects, respectively. This preparation of echinacea had no significant effect on either the occurrence of infection or the severity of illness.
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