What Cell count defines malaria?

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QUESTION

What Cell count defines malaria??

ANSWER

If you are referring to the cell count for diagnosis, then really the answer is that if ANY malaria parasites are observed in a blood film, then the slide should be considered positive for malaria. Of course, some people can have low levels of parasite in their blood, which are not easily detected under a microscope, using a blood slide. These people are also obviously positive for malaria, but have less severe symptoms or indeed may not have any symptoms at all. If they have symptoms, they may need to seek an alternative form of diagnosis, such as a rapid diagnostic test (RDT) or PCR (polymerase chain reaction).

Post Malaria Symptoms

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QUESTION

My girlfriend had malaria in Uganda. It was detected 2nd of October, it was mild form, she felt dizzy, temperature was little higher. She got Artefan, forth day she was in hospital for review, they told her from blood test that its not malaria anymore.

We came home (Slovakia) but week ago she had suddenly the same symptoms like she had had the first time—dizziness, pain in head, temperature. Rapid test showed her she has no malaria. But she is still feeling weak, once in five days she suddenly feels dizzy, sometimes temperature 37,3 Celsius (yesterday last time). Doctors found nothing. Could it be some post-malaria symptom or she might have some other infection? Is it normal?

ANSWER

Rapid tests for malaria are usually quite accurate, especially if the patient is experiencing symptoms. Moreover, the cycles of malaria infection are usually shorter, with patients experiencing fever and dizziness every other day (for Plasmodium falciparum, which is the most common kind in Uganda). I would recommend trying a second rapid test, preferably of a different brand, just to check—make sure it detects ALL kinds of malaria and not just Plasmodium falciparum, as while it is the most common and dangerous kind, there are other types in Uganda, such as P. ovale, which might not show up on a P. falciparum-only test.

If you have access to a travel clinic or hospital that has experience in tropical diseases, you could also see if they could do a blood slide and check for the presence of malaria parasites in your girlfriend’s red blood cells.

If a second rapid diagnostic test is negative, or there is no sign of visible malaria parasites in her blood, then I suspect she has some other infection, as continued symptoms are not usually a side effect of successful malaria treatment.