Hello, Thank you for writing to HCM, Brief Answer - Cough , Fever, which may be mild or high , Shaking chills , Shortness of breath. Explained Answer - The most common symptoms of pneumonia are: 1. Cough (with some pneumonias you may cough up greenish or yellow mucus, or even bloody mucus) 2. Fever, which may be mild or high 3. Shaking chills 4. Shortness of breath, which may only occur when you climb stairs Additional symptoms include: 1.Sharp or stabbing chest pain that gets worse when you breathe deeply or cough 2.Headache 3.Excessive sweating and clammy skin 4.Loss of appetite, low energy, and fatigue 5.Confusion, especially in older people Symptoms also can vary, depending on whether your pneumonia is bacterial or viral. In bacterial pneumonia, your temperature may rise as high as 105 degrees F. This pneumonia causes profuse sweating, and rapidly increased breathing and pulse rate. Lips and nailbeds may have a bluish color due to lack of oxygen in the blood. A patient s mental state may be confused or delirious. The initial symptoms of viral pneumonia are the same as influenza symptoms: fever, a dry cough, headache, muscle pain, and weakness. Within 12 to 36 hours, there is increasing breathlessness; the cough becomes worse and produces a small amount of mucus. There is a high fever and there may be blueness of the lips. Hope you will get it useful, Thanks & Regards, Dr. Gaurav Prajapati