Tyzzer’s disease is a common infectious disease found in gerbils. Symptoms include signs of a roughened coat, lethargy, and lack of appetite. Diarrhea may also be present. Tetracycline in the drinking water may prove beneficial. Gerbils also may experience seizure which exhibit as either convulsions or a hypnotic state. Convulsions last only a minute and are not fatal. No treatment is necessary. Red crusts may develop in the corners of the eyes resembling blood. This is merely a glandular secretion.