Table 3.
Plasmodium exo-erythrocytic parasite burden in Eurasian blackbirds (Turdus merula) and song thrushes (Turdus philomelos) determined by chromogenic in situ hybridization (CISH)
| Host species |
n Examined |
Exo-erythrocytic stages detected by CISH | ||||
|---|---|---|---|---|---|---|
| Negative | Lowa | Moderatea | Higha | Total positive | ||
| Turdus merula | 166 (32) | 17 (3) | 66 (9) | 33 (4) | 50 (16) | 149 (29) |
| Turdus philomelos | 11 (2) | 1 (0) | 8 (1) | 1 (0) | 1 (1) | 10 (2) |
| Total | 177 (34) | 18 (3) | 74 (10) | 34 (4) | 51 (17) | 159 (31) |
Numbers in parentheses indicate mixed infections with either multiple Plasmodium lineages or Haemoproteus and Leucocytozoon lineages
aNumbers of cases exhibiting low, moderate, and high exo-erythrocytic parasite burdens in at least one of the examined organs