Malaria Self Test Module
Thai national holidaying in Australia. Several bouts of fever since arriving. Unknown cause.

Click on one of the following:
Plasmodium falciparum?

Correct! Well done.
Did you note all the following features: red cells not enlarged, double chromatin dots, small ring forms, marginal forms and multiple parasites in the same red cell? Even though the crenated red cells may give rise to some confusion. This is a classical heavy P. falciparum infection.
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Plasmodium vivax?

Sorry! Have another look.
The infected red cells are certainly NOT enlarged and the many ring forms are very fine and delicate . Have another try and in particular look for the presence of some marginal forms, double chromatin dots and multiple parasites insides the same red cell.
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Plasmodium ovale?

Sorry! Have another look.
The infected red cells are certainly NOT enlarged and the many ring forms are very fine and delicate . Have another try and in particular look for the presence of some marginal forms, double chromatin dots and multiple parasites insides the same red cell.
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Plasmodium malariae?

Sorry! Have another look.
You probably noted that the infected red cells are not enlarged, however the ring forms are very fine and there are some marginal forms and double chromatin dots present. The presence of some red cells containing multiple parasites should also give you a clue to the true species identification.
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Malarial parasites not seen?

Sorry! Try again!
There are many parasites present in this field.
Have another look and pay particular attention to the size of the infected red cells. Look out for delicate ring forms, marginal forms and the presence of multiple parasites inside the same red cell.
If you are still unsure, go back to the Diagnosis pages and the Teach section.
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