Sterilization of sewage sludges; incidence and relative viability of ascaris ova at sewage disposal works in the Johannesburg area.
D000818:Animals; D001200:Ascaris; D006801:Humans; D015994:Incidence; D012722:Sewage; D013019:South Africa; D013242:Sterilization
D012722:Sewage
ASCARIS; SEWAGE