Multiple parasites: Difference between revisions

Revision as of 15:59, 3 December 2024

Tilolo In some cases more than one parasite (most often though not always early or late trophozoites) infect a single erythrocyte. This is a surprisingly frequent finding, and it has been suggested some red cells are ore attractive to parasites, or that already infected cells are more susceptible. The most frequent form - two early trophozoites of P.falciparum in a single erythrocyte Species significance This is most often considered a feature indicating P.falciparum infection and is sufficiently frequent in that species to support the diagnosis of P.falciparum malaria. However, it should not considered as a fully specific feature, and may occur in any malaria species - and particularly in P.knowlesi (this is also a frequent finding for babesia parasites). Additional images A B C Double parasites in: late trophozoite of P.malaria (A) late trophozoite of P.vivax (B) and late trophozoite of P.ovale (C)

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-In some cases more than one parasite (most often early or late trophozoites) can be seen within a single erythrocyte. This is surprisingly frequent suggesting some red cells are ore attractive to parasites, or that already infected cells are more susceptible.
+In some cases more than one parasite (most often though not always early or late trophozoites) infect a single erythrocyte. This is a surprisingly frequent finding, and it has been suggested some red cells are ore attractive to parasites, or that already infected cells are more susceptible.
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 <span style="color:navy>'''Species significance'''</span>
-Most often considered a feature indicating ''P.falciparum'' infection, and is certainly frequent in that species where it can be used to support the diagnosis. However, the form should not considered as specific, and may occur in any species (and is also a frequent finding for babesia parasites).
+This is most often considered a feature indicating ''P.falciparum'' infection and is sufficiently frequent in that species to support the diagnosis of ''P.falciparum'' malaria. However, it should not considered as a fully specific feature, and may occur in any malaria species - and particularly in ''P.knowlesi'' (this is also a frequent finding for babesia parasites).
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