Iba1 positive cellular morphologies observed in the human infant brain. Iba1 positive expression, as shown in the internal granular layer of the cerebellar cortex (A), with morphologies including: ramified microglia (B), perivascular cells (C), amoeboid microglia (D), bushy microglia (E), hypertrophied microglia (F), dystrophic microglia (G) and rod cells (H). Scale bar = 50 μm (A) and scale bar = 20 μm (B–H; shown in H).