A parasitic malady is a communicable disease caused or transmitted by a parasite. Several parasites don't cause diseases. Parasitic diseases will have an effect on all living organisms, as well as plants and mammals. The study of parasitic diseases is named parasitology.
Symptoms may mimic anemia or a hormone deficiency. Parasites are responsible for many ill health conditions including diarrhoea, gastrointestinal upset, vaginal irritation, joint pain, nervous diseases, immune dysfunction and chronic fatigue. Long term, undetected infestation can cause many systemic problems.
The number of deaths related to foodborne infection was estimated between 228 and 691. Bacterial pathogens account for the majority (191 to 652) of deaths of which 92 to 535 are attributable to salmonellosis, ranking as the first cause of death, and 78 to listeriosis, the second cause. Salmonella, Campylobacter, and Listeria are the main causes of severe foodborne illness in France.