<prompt> A 9 years old child presented to OPD with complaints of high grade fever, vomiting, one episode of seizure. CSF examination was done and Gram staining of the culture showed the following finding. What is the probable causative agentHaemophilus influenzaeStreptococcus pneumoniaeNeisseria meningitidisEscherichia coli  <response>: Gram staining clearly shows Gram positive cocci violetpurple coloured in pairs - classical image of Streptococcus pneumoniae or pneumococci. Infections caused by Pneumococcus: - Pneumonia Meningitis Otitis media Bacteremia Septic ahritis It is the most impoant cause of infections in splenectomy patients, chronic alcoholics, sickle cell anaemia patients. Ref:- Ananthanarayan and Paniker T.B of microbiology 10th ed; pg num:- 225 