نتایج جستجو برای: bordetella pertusis
تعداد نتایج: 3900 فیلتر نتایج به سال:
In many clinical microbiology laboratories, nucleic acid amplification tests such as PCR have become the routine methods for the diagnosis of pertussis. While PCR has greatly increased the ability of laboratories to detect Bordetella pertussis infections, it has also been associated with false-positive results that can, given the tendency of B. pertussis to cause outbreaks, result in unnecessar...
The effects of the CultureSwab (Difco Laboratories, Detroit, Mich.) and Culturette II (Marion Scientific, Div. Marion Laboratories, Inc., Kansas City, Mo.) transport systems on the viability of 95 clinically significant bacteria were studied. Organisms included staphylococci (8 isolates), streptococci (22 isolates), Haemophilus spp. (16 isolates), members of the family Neisseriaceae (14 isolate...
Bordetella holmesii causes respiratory and invasive diseases in humans, but its pathogenesis remains poorly understood. We report here the genome sequences of seven bacteremia isolates of B. holmesii, including the type strain. Comparative analysis of these sequences may aid studies of B. holmesii biology and assist in the development of species-specific diagnostic strategies.
We examined the structural components of pertussis toxin that are required for efficient export from Bordetella pertussis via the Ptl system, a member of the type IV family of macromolecular transporters. First, we constructed a strain of B. pertussis that contains a functional Ptl system but does not produce pertussis toxin. Plasmids which express either the S1 subunit or the B oligomer were t...
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