Table 1

Morphometric measurements and nuclei counts between the cephalic space and nerve ring of the Thai and Myanmar strains of Wuchereria bancrofti microfilariae


Wuchereria bancrofti strains**




Parameters*
Thai (nocturnally subperiodic)
Myanmar (nocturnally periodic)
t, (p)

Measurements (μm)



Body length
299.20 ± 11.87 (270–324)
286.92 ± 9.42 (255–310)
8.879, (0.000***)
Cephalic space length
5.47 ± 0.68 (4–7)
5.20 ± 0.71 (4–7)
-2.945, (0.004***)
Head to nerve ring length
56.81 ± 5.33 (34–72)
56.24 ± 3.26 (48–67)
0.994, (0.321)
Innenkorper length
42.62 ± 5.79 (32–64)
42.67 ± 5.09 (32–60)
-0.710, (0.943)
Cephalic space width
5.91 ± 0.53 (4–8)
5.62 ± 0.57 (4–7)
-4.097, (0.000***)
Body width at nerve ring
6.32 ± 0.52 (6–8)
6.30 ± 0.69 (5–9)
0.211, (0.833)
Count



Number of nuclei between cephalic space and nerve ring
89.52 ± 6.37 (72–103)
88.51 ± 8.29 (66–101)
-1.100, (2.72)

* Measurements and count: mean ± SD. Range in parentheses.

** Thirty samples from each patient, total 120 samples per strain.

*** Statistically significant difference at p < 0.05

Nuchprayoon et al. Filaria Journal 2007 6:6   doi:10.1186/1475-2883-6-6