Pneumococcal disease is caused by a common bacterium, the pneumococcus, which can attack different parts of the body.
(Pneumococcal disease; is caused; by a common bacterium, the pneumococcus) (the pneumococcus; can attack; different parts of the body)
Pneumococcal disease the pneumococcus
is caused can attack
by a common bacterium, the pneumococcus
different parts of the body