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.
Environmental Factors. Canine Bordetella is spread from dog to dog. It is often passed when there is a high amount of dogs in one contained area, such as with boarding kennels, shelters, obedience classes, dog parks and dog day care facilities.he symptoms of canine Bordetella usually occur for about ten days, but the dog is still contagious for six to 14 weeks after the infection is resolved. In severe cases of canine Bordetella, the doctor will prescribe antibiotics, such as doxycycline or trimethoprim-sulfa.