Lymphocytic, when the C.S.f contains mainly lymphocytes, as in meningitis caused by viruses, M. tuberculosis and C. neoformans.
Lymphocytes are also found in the C.S.f in
Eosinophilic, when the CSf contain mainly
eosinophilus. This rare form of meningitis is
caused by helminthes larvae Angiostrongylus cantonensis and imitis
such as Dirofilaria
Meningitis of the newborn (neonatal meningitis) is caused mainly by E.coli, S. agalactiae (Group
, S. avreus, L. Monocytogenes.
Haemophilus meningitis occurs mainly in infants and young children.
Commensals No normal microbial flora Collection of Csf It should be collected by medical officer in aspectic procedure The fluid is usually collected from the arachnoid space. A sterile wide-bore needle is inserted between the 4th and 5th lumbar vertebrate and C.s.f. is allowed to drip into a dry sterile container.