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Confocal microscopic findings of Naegleria fowleri trophozoites immunostained with an anti-Nfa1 polyclonal antibody and an FITC conjugate. Strong fluorescent signals were shown in pseudopodia, especially in the food cups of N. fowleri trophozoites in media (A, B) and cocultured with CHO cells (C, D) (magnification, ×400).
