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Parasit Host Dis > Volume 14(1):1976 > Article

Original Article
Korean J Parasitol. 1976 Jun;14(1):41-49. English.
Published online Mar 20, 1994.  http://dx.doi.org/10.3347/kjp.1976.14.1.41
Copyright © 1976 by The Korean Society for Parasitology
Morphology of the microfilaria of Brugia malayi in Cheju-Do, Korea
Byong-Seol Seo
Department of Parasitology and Institute of Endemic Diseases, College of Medicine, Seoul National University, Korea.

The morphological characters of the microfilaria of Brugia malayi collected in Cheju-Do, Korea were described and compared with those or other local strains, already reported from the Malay Archipelago(Brug, 1927), Huchow, South China (Feng, 1933), Hachijo Kojima, Japan (Hayashi, 1951) etc. And it was found that there are no marked difference among these kinds of Microfilaria malayi.

The percentage measurements of the fixed points in the Microfilaria malayi from Korea are summarized as follows;

B.N.C.: 3.38%(2.90-3.72%), N.R.: 22.64% (17.36-25.81%), E.P.: 32.26% (27.49-36.60%), E.C.: 38.78% (34.90-41.72%), Inn. K. begin: 53.95% (49.50-58.84%) end: 67.87%(63.02-72.97%), G-1: 70.42% (60.22-75.23%), G-2:76.70% (75.10-78.32%), G-3:78.84% (77.81-79.59%), G-4:80.84%(79.82-81.35%), A.P.:82.94%(77.32-89.72%), Length: 193.39(±12.3 µ)(170.77-233.08 µ), Width: 7.04±0.37 µ(5.99-7.99 µ), Sheath: 268.48±17.07 µ(218.72-286.47 µ), Ratio(Cephalic space): 1: 0.78


Fig. 1
Microfilaria malayi drawn with the aid of camera lucida.

Fig. 2
The general appearance of Microfilaria malayi in thick blood films.

Fig. 3
Diagram of percentage neasurement of M. malayi.

All specimens stained in hematoxylin

Fig. 1. Enlarged from 'B' in plate Fig. 2. (N; Nerve Ring, E.P.; Excretory Pore).

Fig. 2. General appearance of Microfilaria malayi (low magnification).

Fig. 3. Enlarged from 'A' in plate Fig. 2. (G1;G1-cell, B.N.C.; Beginning of Nuclear Cell).

Fig. 4. Enlarged from 'B' in plate Fig. 2. (T.N.; Terminal Nuclei).

Fig. 5. Subterminal nuclei and Terminal nuclei.

Fig. 6. Partly enlarged from 'A' in plate Fig. 2. (E.C.; Excretory Cell).

Fig. 7. Central mass in Innen Körper.

Fig. 8. Subterminal nuclei and Terminal nuclei.


Table 1
Percentage measurements of the fixed points of Microfilaria malayi in Cheju-Do Staining method: Hematoxylin stain

Table 2
Measurements of Microfilaria malayi by various authors

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