Meningococcal disease is a severe illness caused by bacteria (germs) called Neisseria meningitidis (sometimes also called meningococci).
Meningococcal disease can affect all age groups, but is most common in young children under 5 years old, and ...
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Meningococcal disease can affect all age groups, but is most common in young children under 5 years old, and ...
More Information