Pneumonia is a form of acute respiratory infection that is most caused by viruses or bacteria. It can cause mild to life-threatening illness in people of all ages. The lungs are made up of small sacs called alveoli, which fill with air when a healthy person breathes. When an individual has pneumonia, the alveoli are …

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Cystitis is inflammation of the bladder, usually bladder infection causes it. It is a common type of urinary tract infection. Signs Common causes Departments & Emergency Diagnosis Treatment FAQ Signs / Symptoms What’s common signs of cystitis? Strong, persistent urge to urinate Feeling pain or burning when urinating Need to urinate often Peeing only small …

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