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.
Due to its effect on mammals such as domestic pets (cats and dogs) and lab animals, Bordetella bronchiseptica has been closely studied. It has also had its genome sequenced, primarily to derive data in comparison to its relative Bordetella pertussis, which causes whooping cough in humans. [9]