Hombre de 78 años de edad, reside en asilo de ancianos, llega a urgencias, comatoso y con temperatura de 40.3°C. La radiografía de tórax indica neumonía. Se realiza una punción lumbar, el LCR tiene un aspecto turbio. Se inoculan muestras de LCR en medio bifásico en el aparato automatizado, el cual arroja la alarma positiva. El subcultivos en agar sangre muestra colonias alfa hemolíticas, catalasa negativa y sensibles a optoquina. En la tinción de Gram se observan cocos grampositivos en pares. ¿Cuál es el posible agente causal?

What region is located between the shoulder blades

A74-year-old woman, who has been followed for the past 25 years for chronic obstructive pulmonary disease comes to the ed complaining of 48 hours of temperature to 38.6 c and worsening shortness of breath. she has a chronic productive cough, which has become more copious. on physical examination, she has rhonchi and increased fremitus in the posterior mid-lung field. a gram's stain reveals many epithelial cells and multiple gram-positive and gram-negative organisms; no neutrophils are seen. which of the following is the most likely organism causing the symptoms? - escherichia coli- haemophilus influenzae- klebsiella pneumoniae- mycobacterium tuberculosis- mycoplasma pneumoniae

Akey feature of all epidemiology is the definition of a at risk. select one: a. pathogen b. ethnicity c. population d. lifestyle e. insect