Crohn's disease is a form of inflammatory bowel disease characterised by chronic inflammation of the gastrointestinal tract and symptoms like diarrhoea.
Acid reflux is also known as gastro-oesophageal reflux disease (GORD) or heartburn. Reflux of food and gastric acid into the oesophagus causes inflammation.
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.