<prompt> Young female with 3 day fever , presents with headache with rigid neck, BP 9060 mmHg, hea rate of 114min, while checking for her BP, pin point spots developed distal to BP cuff. Most likely organism is:Brucella abousBrucella suisN. meningitidisStaphylococcus aureus  <response>: Option 3 Meningiococcal Meningitis Most common complication of meningococcemia. Usually begins suddenly with an intense headache, vomiting, and stiff neck and progresses to coma within a few hours. During meningococcemia, there is thrombosis of many small blood vessels in many organs, with perivascular infiltration and petechial hemorrhages. Exudation of polymorphonuclear leukocytes,- surface of the brain covered with a thick purulent exudate. Gram staining of CSF N. meningitidis Meningococci Lens shaped with capsule. Option 1 Brucella Classic triad Fever with night sweats; ahralgiaahritis hepatosplenomegalytyphoid like illness Option 4 S. aureus doesnt cause meningitis. 