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Bordetella parapertussis is a small Gram-negative bacterium of the genus Bordetella that is adapted to colonise the mammalian respiratory tract. [1] Pertussis caused by B. parapertussis manifests with similar symptoms to B. pertussis -derived disease, but in general tends to be less severe. [ 2 ]
Bordetella pertussis is a Gram-negative, aerobic, pathogenic, encapsulated coccobacillus bacterium of the genus Bordetella, and the causative agent of pertussis or whooping cough. Its virulence factors include pertussis toxin , adenylate cyclase toxin , filamentous haemagglutinin , pertactin , fimbria , and tracheal cytotoxin .
Bordetella (/ ˌ b ɔːr d ə ˈ t ɛ l ə /) is a genus of small (0.2 – 0.7 μm), Gram-negative, coccobacilli bacteria of the phylum Pseudomonadota. Bordetella species, with the exception of B. petrii , are obligate aerobes , as well as highly fastidious , or difficult to culture.
Whooping cough has been surging in the United States for months and the latest data from the US Centers for Disease Control and Prevention suggests there are no signs of slowing.
Pertussis toxin (PT) is a protein-based AB 5-type exotoxin produced by the bacterium Bordetella pertussis, [2] which causes whooping cough.PT is involved in the colonization of the respiratory tract and the establishment of infection. [3]
Adenylate cyclase toxin from Bordetella pertussis is a 1706 amino acid residue long protein.The protein consists of three domains: from the N-terminus up to roughly residue 400, there is an adenylate-cyclase domain; between residues 500 and 700, there is a hydrophobic domain; and from residue 1000 to the C-terminus, there are calcium binding repeats.
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