Bordetella pertussis know which antibody has been detected. The organism is oxidase positive, but urease, nitrate reductase, and citrate negative. It is also not motile. Bordetella pertussis Bordetella pertussis is a Gram-negative, aerobic, pathogenic, encapsulated coccobacillus of the genus "Bordetella", and the causative agent of pertussis or whooping cough. Unlike "B. bronchiseptica", "B. pertussis" is not motile. Its virulence factors include pertussis toxin, filamentous hæmagglutinin, pertactin, fimbria, and tracheal cytotoxin. The bacterium is spread by airborne droplets; its incubation period is 9–10 days on average (range 6–20 days). Humans are the only known reservoir for "B. pertussis". The complete "B. pertussis" genome
Blount's disease Blount's disease Blount's disease is a growth disorder of the tibia (shin bone) that causes the lower leg to angle inward, resembling a bowleg. It is also known as "tibia vara". It is named after Walter Putnam Blount (1900–1992), an American pediatric orthopedic surgeon. It has also been known as Mau-Nilsonne Syndrome, after C. Mau and H. Nilsonne, who published early case reports of the condition. Bowing of one or both legs that may: Failure to treat Blount's disease may lead to progressive deformity.Blount's disease may come back after surgery, especially in younger children. Because of the bowing, a leg-length