Сократить текст Pneumonia may be caused by specific pathogens. Pneumococcal pneumonia (Lobar pneumonia) is considered to be the most common type in adults which may be both segmental or lobar in distribution. chills in the majority of cases. There is marked tachycardia and tachypnea. Severe pleuritic pain and cough with expectoration of sputum follows. The respiration becomes rapid and shallow and may be associated with breathlessness which can result in cyanosis of the face.