Nur Hanisah Zainoren
S/N: 55
Objective
Introduction
Classification
Meningitis is a disease causedby the inflammation ofmeninges; the protectivemembranes covering thebrain and spinal cord.
Introduction
Meningitis is generally caused by microorganisms such as bacteria or viruses that spread into the CSF through the blood
Viruses are the commonest cause to meningitis
The bacterial meningitis is much more severe.
Meningitis can also be caused by non-infectious causes such as drugs
Types of Meningitis
Bacterialmeningitis
Viralmeningitis
Fungalmeningitis
Parasitemeningitis
Non- infectious meningitis
Caused by bacteria, like Neisseria meningitidis and Streptococcus pneumoniae.
Caused by viruses, like enteroviruses, arboviruses and herpes simplex viruses. Parasites, like
Angiostrongylus cantonensis can contaminate food, water and soil.
Caused by fungi likeCryptococcus andHistoplasma.
Can be caused by cancers, systemic lupus erythematosus , certain drugs, head injury, and brain surgery.
Age Group Causes
Newborns Group B Streptococcus, Escherichia coli, Listeria monocytogenes
Infants and Children
Streptococcus pneumoniae, Neisseria meningitidis, Haemophilus influenzae type b
Adolescents and Young Adults
Neisseria meningitidis, Streptococcus pneumoniae
Older Adults Streptococcus pneumoniae, Neisseria meningitidis, Listeria monocytogenes
Common causes of bacterial meningitis vary by age group:
Bacterialmeningitis
Conclusion
• Meningitis is the inflammation of meninges, the protective layer of the brain and spinal cord.
• Types of meningitis include bacterial meningitis, viral meningitis, fungal meningitis, parasitic meningitis and non-infectious meningitis.