Investigations into the association between soil-transmitted helminth infections, haemoglobin and child development indices in Manufahi District, Timor-Leste

Table 2 Ascaris spp. and Necator americanus intensity of infection quantification cycle (C_q) cut-points between heavy and moderate morbidity

Soil-transmitted helminth	Eggs per gram of faeces (epg) class^a	EPG class with recovery factor applied^b	Corresponding C_q-value^c
N. americanus	≥ 4000	20,000	24.6
Ascaris spp.	≥ 50,000	250,000	15.4

Abbreviations: C_q, quantification cycle; epg, eggs per gram of faeces
^aEggs per gram of faeces intensity classes follow WHO definitions [28]
^bRecovery factor of 0.2 applied to epg intensity class based on recovery factor determined from faecal flotation (R. Traub, unpublished data)
^cDNA intensity from exponentiated C_q-values

ISSN: 1756-3305