1. Adult patient admitted to an ICU for acute severe CAP within 48 hours of hospital admission with <br/ > a. symptoms or signs or both that are <br/ > consistent with lower respiratory tract <br/ > infection (for example, acute onset of <br/ > dyspnea, cough, pleuritic chest pain) AND <br/ > b. Radiological evidence of new onset <br/ > infiltrate of infective origin (in patients <br/ > with preexisting radiological changes, <br/ > evidence of new infiltrate) <br/ >2. Up to 48 hours after ICU admission, receiving organ support with one or more of: <br/ > a. Non-invasive or invasive ventilatory <br/ > support <br/ > b. Receiving infusion of vasopressor or <br/ > inotropes or both

1. Adult patient admitted to an ICU for acute severe CAP within 48 hours of hospital admission with <br/ > a. symptoms or signs or both that are <br/ > consistent with lower respiratory tract <br/ > infection (for example, acute onset of <br/ > dyspnea, cough, pleuritic chest pain) AND <br/ > b. Radiological evidence of new onset <br/ > infiltrate of infective origin (in patients <br/ > with preexisting radiological changes, <br/ > evidence of new infiltrate) <br/ >2. Up to 48 hours after ICU admission, receiving organ support with one or more of: <br/ > a. Non-invasive or invasive ventilatory <br/ > support <br/ > b. Receiving infusion of vasopressor or <br/ > inotropes or both

1. Adult patient admitted to an ICU for acute severe CAP within 48 hours of hospital admission with <br/ > a. symptoms or signs or both that are <br/ > consistent with lower respiratory tract <br/ > infection (for example, acute onset of <br/ > dyspnea, cough, pleuritic chest pain) AND <br/ > b. Radiological evidence of new onset <br/ > infiltrate of infective origin (in patients <br/ > with preexisting radiological changes, <br/ > evidence of new infiltrate) <br/ >2. Up to 48 hours after ICU admission, receiving organ support with one or more of: <br/ > a. Non-invasive or invasive ventilatory <br/ > support <br/ > b. Receiving infusion of vasopressor or <br/ > inotropes or both

1. Adult patient admitted to an ICU for acute severe CAP within 48 hours of hospital admission with <br/ > a. symptoms or signs or both that are <br/ > consistent with lower respiratory tract <br/ > infection (for example, acute onset of <br/ > dyspnea, cough, pleuritic chest pain) AND <br/ > b. Radiological evidence of new onset <br/ > infiltrate of infective origin (in patients <br/ > with preexisting radiological changes, <br/ > evidence of new infiltrate) <br/ >2. Up to 48 hours after ICU admission, receiving organ support with one or more of: <br/ > a. Non-invasive or invasive ventilatory <br/ > support <br/ > b. Receiving infusion of vasopressor or <br/ > inotropes or both