TABLE 2.
Recovery of cysts of competing Naegleria species by filtration
| Naegleria spp. | Ratio of the 2 Naegleria speciesa | % Recovery
|
|||
|---|---|---|---|---|---|
| N. fowleri | N. lovaniensis | N. australiensis | Total Naegleria | ||
| N. fowleri + N. lovaniensis | 62:38 (1:1) | 52 | 13 | 42 | |
| 64:36 (3:1)b | 26 | 76 | 73 | ||
| 78:22 (3:1)b | 64 | 5 | 49.5 | ||
| 84:16 (4:1) | 67 | 25 | 65 | ||
| 89:11 (4:1) | 84 | 0 | 75 | ||
| Mean ± SD | 58.6 ± 21.7 | ||||
| N. fowleri + N. australiensis | 22:78 (1:1)b | 84 | 6 | 29.5 | |
| 50:50 (1:1) | 50 | 24 | 53 | ||
| 51:49 (1:1)b | 51 | 6 | 37 | ||
| 54:46 (1:1) | 32 | 48 | 53 | ||
| 56:44 (1:1) | 65 | 13 | 48 | ||
| 66:34 (1:1)b | 33 | 31 | 75 | ||
| Mean ± SD | 52.5 ± 19.8 | ||||
| Mean recovery ± SD | 55.3 ± 19.8 | 23.8 ± 30.7 | 21.3 ± 16.4 | 54.5 ± 15.6 | |
a
The observed ratio and theoretical ratio (shown in parentheses) are given for each mixture of competing Naegleria species.
b
Filtration performed during comparative experiments with centrifugation.