Table 1: IMS recovery efficiency for N. fowleri seeded into 5 mL of water ( ).

Genotype (strain)Water typeCyst stage (average ± SD)Trophozoite stage (average ± SD)

I (CDC:V212)Amended DI % %
Lake* % %
II (CAMP)Amended DI % %
Lake % %
III (CDC:V515)Amended DI % %
Lake % %
IV (ATCC 30462)Amended DI % %
Lake % %
All 4 genotypesAmended DI % %
Lake % %

GA lake water filtered through a 2.7  m cellulose acetate filter.