Table 1.

Heritability estimates for genetic component of risk of schistosomiasis in different populations.

Parasite	Phenotype	Country and district	Heritability estimate and method eg h2	References
S. mansoni	Egg count	Brazil, Minas Gerais	23% (h2)	(62)
S. mansoni	Egg count	Brazil, Minas Gerais	27% (VC)	(63)
S. mansoni	Egg count	Brazil, Bahia	31% (VC)	(64)
S. mansoni	IgE	Brazil, Bahia	59% (VC)	(64)
S. haematobium	Egg count	Kenya, Coast	9% (h2)	(46)
S. haematobium	Bladder morbidity	Kenya, Coast	14% (h2)	(46)
S. japonicum	Infection	China, Jiangxi	58% (VC)	(65)
S. japonicum	Infection	China Sichuan	0% (VC)	(66)

h2 additive heritability, VC variance components.