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Table 1 Age-specific worm burden thresholds for morbidity [15]

From: An economic evaluation of expanding hookworm control strategies to target the whole community

Age class (years) Lower threshold Higher threshold
0–4 20 80
5–9 30 120
10+ 40 160
  1. The lower thresholds are based on empirical observations of worm numbers associated with developmental deficits [15, 17]. The higher thresholds are a more conservative value intended to reflect more serious clinical consequences and to provide a lower bound to the estimate of morbidity [15, 17]