Alpha-1 antitrypsin deficiency is an inherited disease which affects the liver and lungs. A genetic mutation causes chronic liver disease and emphysema.
Whooping cough is a highly contagious, vaccine-preventable bacterial infection of the respiratory tract which causes a distinctive cough and whooping sound.
Chicken pox is a contagious, vaccine-preventable infection by the varicella zoster virus. It causes an itchy, red, lumpy rash and is common in children.