Table 1.

Recovery of trophozoites of competingNaegleria species by filtration

Naegleria spp.Ratio of the 2 Naegleria speciesa% Recovery
N. fowleriN. lovaniensisN. australiensisTotal Naegleria
N. fowleri +N. lovaniensis40:60 (1:1)b 0127
48:52 (1:1)b 2.518.712.5
69:31 (3:1)b 09.53
73:27 (4:1)374
77:23 (4:1)101011
78:22 (4:1)38529
80:20 (4:1)39031
Mean ± SD13.2 ± 17.5
N. fowleri + N. australiensis48:52 (1:1)354
52:48 (1:1)b 201
54:46 (1:1)71612
57:43 (1:1)b 4.202.4
57:43 (1:1)15714
Mean ± SD6.1 ± 5.2
Mean recovery ± SD10.2 ± 13.88.9 ± 5.85.6 ± 6.410.0 ± 10.3
  • a The observed ratio and theoretical ratio (shown in parentheses) are given for each mixture of competingNaegleria species.

  • b Filtration performed during comparative experiments with centrifugation.