noun, Psychology. 1. Also called operant conditioning, instrumental conditioning. a process of changing behavior by rewarding or punishing a subject each time an action is performed until the subject associates the action with pleasure or distress.
Pertussis is caused by the bacterium Bordetella pertussis. It is an airborne disease which spreads easily through the coughs and sneezes of an infected person. People are infectious to others from the start of symptoms until about three weeks into the coughing fits.
This test checks for Bordetella pertussis antibodies in your blood. B. pertussis are the bacteria that cause pertussis, or whooping cough. Whooping cough is a highly contagious childhood infection that can also affect adults.It can be quite serious and sometimes deadly, especially in children younger than 6 months.Its hallmark symptom is a cough that may last 10 months or longer.. pertussis are the bacteria that cause pertussis, or whooping cough. Whooping cough is a highly contagious childhood infection that can also affect adults. It can be quite serious and sometimes deadly, especially in children younger than 6 months.