This might also explain the poor-to-moderate agreement
between the FLOTAC and ether-concentration techniques, and the
failure of the Kato–Katz method – in which only 41.7 mg faecal
material are analysed – to detect these eggs. In this respect it
must also be remembered that the amount of faeces examined
by the FLOTAC and the ether-concentration method, respectively,
was 2:1. Even after taking into account the larger amount of stool
screened by FLOTAC compared to the ether-concentration method,
the FLOTAC still appears to be superior in diagnosing Trichuris eggs,
both large and standard-sized.