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P.vivax young ring on thin blood film: RBC barely enlarged, Nucleus round and ring regular with a size about half of RBC diameter. Here the size of the ring is determinant for specie diagnosis.
P.vivax trophozoites on thick blood film. “Ghost” RBC visible. Cytoplasm irregular and polymorphic.
P.vivax large rings (upper middle and right) and 1 P.vivax Gametocyte (left) on thin blood film.
P. vivax trophozoites and mature schizonts on thick blood film. Note the scattered yellow-brow pigment in schizonts.
P.vivax gametocyte on thin blood film.
P.vivax mature schizont on thin blood film. Note that the RBC is enlarged, Schuffner’s dots are still visible and yellow-brown pigment is scattered.
P.vivax small ring (upper left), early schizont (upper right) and mature schizont (lower) on thin blood film.
P.vivax large ring (upper) and gametocyte (lower) on thin blood film.
P.vivax gametocyte on thin blood film. Note numerous tiny pink Schuffner’s dots and large pink nucleus.
P.vivax young ring on thin blood film: RBC normal, ring size about 1/3 of RBC diameter. Cytoplasm slightly irregular.
P.vivax 2 large rings on thin blood film. Note numerous Schuffner's dots, irregular and polymorphic cytoplasm. Both hosts RBC are enlarged.
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