For viruses, classification is normally based on type of nucleic acid, morphology, presence or absence of an envelope and replication properties. A number of families is recognized, with the family name ending in -viridae, e.g. Poxviridae (double-stranded DNA, enveloped animal viruses).
Heartburn, regurgitation, and dyspepsia are a few of the most common acid reflux symptoms. Heartburn. Also called acid indigestion, heartburn is a burning pain or discomfort that can move up from your stomach to the middle of your abdomen and chest. The pain can also move into your throat.
10 Signs and Symptoms of G.E.R.D. (Acid Reflux) Gastroesophageal reflux disease (GERD), also known as âacid refluxâ, is a chronic symptom of damage to the mucus membrane lining of the stomach or the throat. GERD happens when stomach acid or bile is expelled into the esophagus over time. Although acid reflux is common, it is not always easy to diagnose because it resembles the symptoms of many other conditions, but it can be more serious than you might believe.