CRP and bacterial urinary tract infection: Pneumonia, > 1 of: abnormal respiratory examination, or pulmonary infiltrates in chest x-rays, productive cough with purulent sputum, microbiological cultures from lower respiratory tract or blood cultures, leukocytosis and elevation of CRP. UTI: > 1 of the following: fever (temperature > 38.0°C), urine sample positive for nitrite, leucocyturia, and significant bacteriuria.