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. 2021 Sep 27;11(10):2824. doi: 10.3390/ani11102824

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Ruptured mature megalomeronts of Haemoproteus pastoris (lineage hLAMPUR01) in the pancreas (A–C), the intestine (D–F), and the spleen (G–I) of naturally infected Common starlings Sturnus vulgaris. Note that the prominent capsular-like wall was still present after megalomeront maturation and release of merozoites (B,C,E–I), resulting in maintenance of a prominent space, which was invaded with numerous erythrocytes and other blood cells (A–C vs. D–I). Parasites were shown at three different magnifications: A, D, G ×100; B, E, H ×200, and C, F, I ×400. Filled-black triangle arrows ()—capsular-like wall. Contoured-black triangle arrows ()—rupture of the capsular-like wall. Flat triangle arrows ()—red blood cells invading the megalomeront. Triangle arrowheads ()—other cells invading the megalomeront. All scale bars = 40 μm.

Inline graphic — Ruptured mature megalomeronts of Haemoproteus pastoris (lineage hLAMPUR01) in the pancreas (A–C), the intestine (D–F), and the spleen (G–I) of naturally infected Common starlings Sturnus vulgaris. Note that the prominent capsular-like wall was still present after megalomeront maturation and release of merozoites (B,C,E–I), resulting in maintenance of a prominent space, which was invaded with numerous erythrocytes and other blood cells (A–C vs. D–I). Parasites were shown at three different magnifications: A, D, G ×100; B, E, H ×200, and C, F, I ×400. Filled-black triangle arrows ()—capsular-like wall. Contoured-black triangle arrows ()—rupture of the capsular-like wall. Flat triangle arrows ()—red blood cells invading the megalomeront. Triangle arrowheads ()—other cells invading the megalomeront. All scale bars = 40 μm.