Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Bordetella pertussis can be cultured from a sample of mucus from the nose. It usually takes about 2 weeks to obtain a culture result. In addition, special antibody stains can be used to detect the organism in 1 to 2 days.