Before "Imedis" there were only 2 methods for diagnosing these worms:
1. A probe is taken from the duodenum and the eggs of the worms are looked for under a microscope. These worms begin to lay eggs no earlier than 4-6 months after infection and do so periodically. That is, by this method, the eggs of these worms can be found by chance, and the method is very unpleasant. In addition, there are almost no specialists who know what these eggs look like. Therefore, this method is practically not used.
2. Only opisthorchiasis is diagnosed by a blood test.