The Kato technique is now most commonly used for detecting Schistosome eggs. It has in the past been used for other helminth eggs as well. It cannot be used to identify hookworm eggs because they collapse within 30 to 60 minutes of preparation using this method

History:
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It was developed in 1954 by the Japanese physician, Dr. Kan Kato (1913–2011), together with his adviser, Dr. Momoshige Miura (1891–1989), a renowned Japanese medical researcher and psychiatrist.[4][5][6] The technique was modified for use in field studies in 1972 by a Brazilian team of researchers led by the Brazilian Parasitologist, Naftale Katz (b.1940),[7][8] and this modification was adopted by the WHO as a gold standard for multiple helminth infections

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