Measles is a serious disease that is easily spread through the air. Immunisation is effective in preventing the disease. All children and adults born during or after 1966 should be vaccinated with 2 doses of measles containing vaccine if not already immune.

Influenza, commonly known as the flu, is caused by a highly contagious virus that is spread by fluids produced during coughing and sneezing, or by direct contact with those fluids on surfaces. 

Whooping cough is a highly infectious diseases. It takes 7 to 20 days after infection for symptoms of whooping cough to appear. It begins like a cold and then it causes uncontrolled coughing and vomiting for up to several months.

Hand foot and mouth disease is a mild illness common amongst children who attend childcare. The most typical symptoms are blisters in around the hand, foot and mouth.

Gastroenteritis (gastro) is a very common illness in infants and children. It is usually caused by viruses that infect the bowel. It tends to be more common during the winter months.