septic embolization due to bacteremia and fungemia is common among drug-addicts , sometimes causing , although not very often in comparison with other sites , various infectious complications in the cns ( meningitis , cerebral abscess , subdural empyema or epidural abscess ) , `` '' staphylococcus aureus '' '' being the micro-organism most frequently involved .
C0007684
infectious
C0025289
meningitis