There are three primary triggers of pneumonia, namely, bacterial, fungal, or viral infections. Bacterial pneumonia is most commonly caused by the bacteria known as Streptococcus pneumoniae that lives in the upper respiratory tract. Bacterial pneumonia often affects those recovering from surgery, afflicted with respiratory disease, or have a weakened immune system. Fungal pneumonia often affects individuals with chronic medical conditions, compromised immune systems, or those commonly exposed to contaminated soil or bird feces. The types of fungi that can cause pneumonia are Coccidioidomycosis, Histoplasmosis, Cryptococcus, and Pneumocystis jirovecii. The most common cause of viral pneumonia is the seasonal influenza virus, but it can also be caused by the respiratory syncytial virus (RSV), especially in children. If you require a pneumonia specialist's services, we welcome you to come to Immediate Care of Oklahoma! No appointment is necessary, as we happily accept walk-in appointments at all seven of our locations in Edmond, Norman, Yukon, and Oklahoma City.