Fever, muscle aches, nausea or diarrhea are the most common symptoms, but the infection can spread to the nervous system, causing headaches, a stiff neck and convulsions. About 2,500 people become seriously ill in the United States each year from listeria and about 500 die.
Confidence votes 40.5K. The symptoms are your body's way of reacting to a disease. It is often said that pathogens are the same as germs and cause only infectious disease, however, the word can mean the agent that causes any type of disease.iseases caused by pathogens are often contagious and include things such as Meningitis, Influenza and Tuberculosis. Diseases not caused by pathogens are generally things wh â¦ ich go wrong in the body. For example, Cancer, Multiple Sclerosis and Motor Neurone Disease are all diseases not caused by pathogens.
Infectious diseases are caused by small microbes invisible to the eye. The microbes include bacteria, protozoans, fungi, yeast and virus. Of them bacteria and protozoans are the most common disease causing agents.Bacteria cause disease both in plants and animals.iseases caused by bacteria; Bacteria causes wide set of diseases by deranging the host physiology. courtesy:wikicommons. Most of the diseases caused by bacteria are life threatening and also damaging to the affected organ. Once infected the common symptoms like fever, weakness are observed by the host.