1.the reaction characteristic of cerebrospinal fluid, most commonly patient present with acute onset severe headache increasing intensity within one hour of onset and often describing as worst headache of their life. in severe cases patients can present with loss of consciousness(LOC),seizure, cranial nerve palsies and various pattern.

of bacterial ,the objective of the process was to identify an unknown bacterial species using different staining an biochemical methods and test to figure out the species to ultimately classify it. single celled, DNA and cell organelles not surrounded by a membrane.

Viral: viruses are known to infect every cell type;

obligate intracellular parasites;

namometers in size; acellular; have instructions for their own reproduction, but not outside of host cell

fungal infectious: direct microscopic examination of clinical specimens such as sputum, biopsy,CSF, and or skin scrapings provides a rapidand accurate diagnosis of some fungal.