Figure 1: Microscopic examination of Brugia spp. microfilaria in domestic cats (cat No. 1-cat No. 9; C1-C9) by Giemsa staining method (40 X ). The arrows of red, black, and green demonstrate features of the cephalic space, terminal nuclei and pink-staining sheath, respectively. Cat No. 5 (C5), cat No. 6 (C6), cat No. 8 (C8), and cat No. 9 (C9) showed exsheathed microfilaria.