When a respiratory infection spreads to another organ, the infection becomes significantly more difficult to treat. This is especially true for SCI survivors, who already struggle with decreased immunity, and who may have additional health problems. The more rapidly the infection spreads, the more easily your body can become overwhelmed. Even if the infection is promptly treated, it's possible to suffer serious and lasting organ, tissue, and muscle damage. This is why it's so important to tell your doctor immediately if you experience other symptoms alongside a respiratory infection, even if those symptoms seem relatively minor.