Table 1. Summary of samples analyzed in this study.
| Country of origin | Matrix | Number/description | Clinical pathology | Nodulectomy results | Average mf per mg |
| Cameroon | Plasma | 16 O. volvulus infected | Palpable nodule(s) | All nodules contained live worms | —a |
| 18 uninfected controls | — | NA | 0b | ||
| 1 calcified worm | Palpable nodule(s) | 1 dead, calcified worm | — | ||
| 2 ambiguous lipoma | Palpable nodule(s) | Fat deposit | — | ||
| 1 indeterminant infection status | — | — | — | ||
| Ghana | Serum | 15 O. volvulus infected | Palpable nodule(s) | — | 12c |
| 10 O.volvulus, mf+ | Acute papular onchodermatitis | — | +d | ||
| Liberia | Serum | 10 O. volvulus infected | — | — | 527e |
| Guatemala | Serum | 21 O. volvulus infected | Palpable nodule(s) | 24% of nodules sampled all worms dead | — |
| 17 uninfected controls | — | NA | — | ||
| 6 Leishmania braziliensis | — | NA | — | ||
| 6 Leishmania mexicana | — | NA | — | ||
| 5 Trypanosoma cruzi | — | NA | — | ||
| India | Plasma | 4 Wuchereria bancrofti | — | NA | — |
| USA | Plasma | 3 O.volvulus uninfected, no known disease | — | NA | — |
| Serum | 3 O. volvulus uninfected, no known disease | — | NA | — |
a
— indicates no measurement made.
b
no mf were measured in samples collected from four different anatomical locations from the 18 control individuals included in this analysis.
d
Samples are known to be mf+, but records are not available.
e
Average number of mf collected from six different anatomical locations from the 10 patients included in this analysis.