What is the single season highest batting average of any pitcher in MLB history?   Since 1973, the highest single season batting average by a pitcher was in 1993 when Orel Hershiser hit .356 (26 for 73) for the Dodgers. I was not able to find a list ofâ¦ batting averages pre 1973 but I know there has to be one on the Web somewhere.
Causes. Pertussis, a respiratory illness commonly known as whooping cough, is a very contagious disease caused by a type of bacteria called Bordetella pertussis.
Previously called Alcaligenes fecalis. Bordetella bronchiseptica. a small, gram-negative, motile bacillus. A normal inhabitant of the respiratory tract in humans, dogs and pigs, but also causes pneumonia, stillbirths, abortions, canine infectious tracheobronchitis (see kennel cough) and atrophic rhinitis in pigs. pertussis produces various toxins including a dermo-necrotising toxin, an adenyl cyclase, an endotoxin and pertussis toxin, as well as surface components such as fimbrial haemagglutinin. Clinical findings. Runny nose, sneezing, mild cough, low-grade fever.