About-A Whooping cough also known as pertussis or a 100-day cough is a highly contagious respiratory tract infection marked by a severe hacking cough followed by a high-pitched intake of breath.
A Whooping cough is caused by a type of bacteria called Bordetella pertussis. When an infected person coughs or sneezes, tiny germ-laden droplets are sprayed into the air and breathed into the lungs of anyone nearby.