The global limits and population at risk of soil-transmitted helminth infections in 2010

Parasites & Vectors

Table 5 Population at risk of STH infection in 2010

			Population at risk (PAR) of infection (millions)
Region	Total Pop(millions)	Excluded pop^a (millions)	Hookworm		*A. lumbricoides*		*T. trichiura*		Any STH species
Region	Total Pop(millions)	Excluded pop^a (millions)	Stable^b	Unstable^c	Stable^b	Unstable^c	Stable^b	Unstable^c	Stable^d	Unstable^e
Total population
*Global*	*5,634.9*	*78.3*	*5,076.6*	*269.4*	*5,231.3*	*184.5*	*5023.3*	*284.0*	*5,340.1*	*143.4*
SSA	864.7	0.08	810.5	48.9	715.7	98.8	715.7	98.8	810.5	48.9
NA/ME	447.4	38.6	268.3	83.7	254.3	85.2	254.3	85.2	268.3	83.7
Asia and Oceania	3,748.3	36.5	3,493.8	79.4	3,686.4	10.4	3,493.8	84.3	3,686.4	10.4
LAC and Caribbean	589.4	3.11	503.9	57.5	574.8	0.4	559.3	15.7	574.8	0.4
School-aged (5–14 years) population
*Global*	*1078.9*	*12.5*	*966.1*	*55.5*	*990.7*	*43.2*	*948.5*	*62.7*	*1019.1*	*31.1*
SSA	228.6	0.01	214.4	12.8	189.0	26.4	189.0	26.4	214.4	12.8
NA/ME	87.1	7.35	50.5	16.4	47.6	16.8	47.6	16.8	50.5	16.4
Asia and Oceania	653.2	4.68	607.3	15.2	646.7	0	607.3	16.6	646.7	1.8
LAC and Caribbean	110.0	0.45	93.8	11.1	107.4	0.08	104.6	2.9	107.4	0.08

^a Population in countries with 2010 GDP (PPP) > US$ 20,000 are presumed to be at little or no risk of infection with any species of STH.
^b Stable transmission based upon region and species-specific climatic transmission limits.
^c Unstable transmission (median prevalence <2%) based upon region and species-specific climatic transmission limits.
^d Stable transmission of at ≥1 STH species.
^e Unstable transmission of at ≥1 STH species.

ISSN: 1756-3305