Parasitic diseases and Infections
Parasitism is an intimate relationship between two different species in which one (parasite) uses the other (host) as its environment from which it derives nourishment. They are a highly diverse group of organisms that have evolved different strategies for infecting their hosts. There are different types of parasites they are Nematodes, Cestodes, Trematodes, and Acanthocephalans. Epidemiology is considered a basic science of public health. It is a quantitative discipline built on a working knowledge of probability, statistics, and sound research methods; b) a method of causal reasoning based on developing and testing hypotheses pertaining to occurrence. Diagnosis of parasitic diseases requires highly sensitive and specific tests Conventional techniques including serology and microscopy do not always meet these requirements. The principle of nucleic acid probes is that a specific sequence of the parasite's DNA is isolated and used in a hybridisation assay to identify homologous parasite DNA from infected material. The treatment and prevention of parasitic diseases can be carried out by different methods.