Pneumonia can be a mild to life-threatening illness. The most common pneumonia-causing germ in adults is streptococcus pneumoniae, also called pneumococcus, according to The National Library of Medicine (NLM). This bacteria can live in the nose, sinuses or the mouth and can then spread to the lungs causing pneumonia. The bacteria can also be inhaled directly into the lungs. Sources of the bacteria, states the NLM, may include food, liquids, vomit or other secretions from the mouth. Streptococcal pneumonia primarily affects the respiratory system.
Cough
Individuals with streptococcal pneumonia may cough up greenish or yellow mucus, states the NLM. Some patients may even have blood-tinged mucus or cough up blood. The cough may be unproductive in the elderly, meaning mucus does not come up when coughing, states the Centers for Disease Control and Prevention (CDC).
Fever With Fatigue
The CDC indicates a fever often precedes other symptoms of streptococcus pneumonia. Chills and sweating may accompany the fever. The fever may occur suddenly as can general tiredness (malaise). This may be the only symptom in children. Fatigue, or moderate weakness and a reduced appetite, are common with the illness. The skin may become clammy from the irregular temperature as the body's immune system fights off the infection.
Respiratory Problems
Patients may notice shortness of breath even after completing a simple task, like climbing the stairs, states the NLM. There may be chest pain that accompanies breathing difficulties.
Symptoms in the Head
Congestion and sinus pressure can cause headaches or pain in the face. The Mayo Clinic suggests muscle pain is a common sign of pneumonia. All the symptoms combined and the illness itself can cause mental confusion in some patients, states the clinic.
Serious Signs
Individuals who experience certain symptoms of pneumonia should seek medical attention immediately. These include persistent cough, shortness of breath, chest pain or an unexplained fever of 102 degrees Fahrenheit or higher. Other serious signs include chills, sweating or suddenly feeling worse after the cold or the flu.
