1 In men with established coronary heart disease, consumption of 1-14 alcoholic drinks per week, including wine, doesn't seem to have any effect on heart disease or all-cause mortality compared with men who drink less than one drink per week.
Terminology [edit]. Although organisms such as bacteria function as parasites, the usage of the term parasitic disease is usually more restricted. The three main types of organisms causing these conditions are protozoa (causing protozoan infection), helminths (helminthiasis), and ectoparasites.ome parasites like Toxoplasma gondii and Plasmodium spp. can cause disease directly, but other organisms can cause disease by the toxins that they produce.
Schistosomiasis is a parasitic disease that is not directly contagious from person to person. Five types of Schistosoma worm, also called blood flukes, can infest people and cause schistosomiasis: S. mansoni, S. japonicum, S. mekongi, S. intercalatum, and S. haematobium. These parasites have a complex life cycle; they have to go through several separate stages on their way to adulthood, and both snails and humans play important roles in that cycle.