Pertussis, also known as whooping cough, is a highly contagious respiratory infection. Pertussis causes violent coughing which can make it hard to breath. Pertussis affects babies and young children most commonly and most severely.ertussis, also known as whooping cough, is a highly contagious respiratory infection. Pertussis causes violent coughing which can make it hard to breath. Pertussis affects babies and young children most commonly and most severely.
Legal Definition of credit bureau. : a private business that compiles information on consumers' creditworthiness and provides this information to lenders.
Definition of credit: Accounting: An entry on the right-hand side of an account record in double entry bookkeeping. It has the effect of decreasing an asset or expense account, or of increasing a capital, liability, or ...