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Co-infection with two species: Difference between revisions

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In short, mixed-species malaria infections occur, but may go unrecognised. Their precise frequency will vary according to the case-mix in the area concerned. They may only be detected during convalescence.  
Mixed-species malaria infections certainly occur. Their precise frequency will vary according to the case-mix in the area concerned.  


In endemic areas where multiple malarial species circulate estimates of prevalence may be as high as 30%, but in other areas this is far lower and would often be regarded as forming fewer than 5% of infections.
In endemic areas where multiple malarial species circulate estimates of prevalence may be as high as 30%, but in other areas this is far lower and would often be regarded as forming fewer than 5% of infections.


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Recogition by morphology requires the presence of parasite forms that have recognisable species-specific features for two separate species. This may sometimes be easy, but can be challenging when one species predominates. Some examples are shown below:

Revision as of 11:27, 21 November 2024


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Dual species infection


Mixed-species malaria infections certainly occur. Their precise frequency will vary according to the case-mix in the area concerned.

In endemic areas where multiple malarial species circulate estimates of prevalence may be as high as 30%, but in other areas this is far lower and would often be regarded as forming fewer than 5% of infections.


Recogition by morphology requires the presence of parasite forms that have recognisable species-specific features for two separate species. This may sometimes be easy, but can be challenging when one species predominates. Some examples are shown below: