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.
There are many symptoms of acid reflux and not all of them involve what you would expect (e.g., heartburn or a pain in the chest). A dry, unproductive cough is a symptom, as is persistent hoarseness. When my reflux flares up, those are the two most prominent symptoms.