Pneumococcal disease is an important cause of serious illness in adults. It is caused by a common bacterium, Streptococcus pneumoniae, which can attack different parts of the body. If the pneumococcal bacteria infect the lungs, they can cause pneumonia. When they invade the blood stream, they cause septicaemia and when they invade the brain, they cause meningitis.
Like the common cold, pneumococcal disease is easily spread by close contact, coughing and sneezing. However, spreading of infection and disease can be reduced by hygiene measures such as washing your hands regularly throughout the day. (1)