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Analysis of a faeces sample. The parasite can be seen under a microscope, or laboratory techniques can be used to detect proteins (antigen detection) or fragments of the parasites’ genes in the faeces (PCR).
Serology. Technique that consists of detecting antibodies in a blood sample.
In some cases, other tests may be necessary to complete the diagnosis for example:
Fibrocolonoscopy, to see the inside of the digestive tract.
Imaging tests to identify the lesions caused to the organs by the parasite (for example, an abdominal or cardiac ultrasound, or an x-ray of the thorax).
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