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DNA based diagnosis of Malaria and Typanosoma cruzi

A DNA probe from a highly repeated DNA sequence of Plasmodium falciparum, the parasite that causes malaria, is used to screen blood samples via hybridization assays

DNA primers are made against the ends of a 188 bp repeated sequence contained in the protozoan parasite Typanosoma cruzi, the causative agent of Chagas disease and used in a PCR/polyacrylamide gel electrophoresis detection method

Other examples of DNA-based detection:  Salmonella typhi (food poisoning), certain E. coli (gastroenteritis), Mycobacterium tuberculosis (tuberculosis), etc.

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