Why is Kato Katz sensitive?
The larger variation for hookworm leads to a lower sensitivity of the Kato-Katz technique for this helminth species for a similar infection intensity. Thus, the increase in sensitivity due to repeated sampling is much larger for hookworm (see Fig 3).
What is Kato Katz test?
the Kato-Katz technique is used for qualitative and semiquantitative diagnosis of intestinal helminthic infections. It is performed using a small spatula and slide template that allows a standardized amount of faeces to be examined under a microscope and the eggs to be counted.
What is Kato thick smear?
A method of fecal examination described by Kato and involving the clearing of a direct fecal smear pressed thin under a glycerin-impregnated cellophane coverslip was evaluated for possible use in quantitative diagnosis of helminth infections.
What is the advantage of Kato thick smear?
The advantages of Kato-Katz are its low cost, short sample preparation time, simple handling and the need of only basic equipment [8,10]. However, the method has a low sensitivity for low STH infection intensities, hookworm eggs disappear after one hour and samples and slides for hookworm cannot be stored [11–13].
What is Flotac technique?
The FLOTAC is a sensitive, accurate, and precise technique for the diagnosis of protozoan and helminth infections in humans and animals. However, it requires centrifugation, and hence might be out of reach in resource-constrained settings.
How long should the prepared Kato smear be read?
To avoid the clearing of hookworm eggs, the WHO recommends reading a Kato-Katz thick smear 30 to 60 minutes after the slide is prepared [17].
What is the purpose of glycerin and malachite green?
The glycerin, in the malachite green in Kato Katz’s technique, functions as a clearing agent while the malachite green besides being a dye, is bactericidal 2,3.
What does arthrotec 75 do?
Arthrotec 75 is a non-steroidal, anti-inflammatory drug, which is effective in treating the signs and symptoms of arthritic conditions. This activity is due to the presence of diclofenac, which has been shown to have anti-inflammatory and analgesic properties.