Symptoms Chesty Cough Cough, even though it is looked on as an irritation, is in reality of great help for the body. Read more Cold The common cold, or viral rhinitis, is the most widespread disease in the world: every year, one billion people have to deal... Read more Fever Warm blooded animals are able to regulate their body temperature autonomously and keep it within a certain range. Read more Flu Every year millions of people around the world fall ill with the flu, a viral disease that has been known to man... Read more