Apr 6, 2014
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PERIODICITY

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Recurrence at regular intervals of symptoms in malaria, characterised clinically by paroxysms and resulting from the invasion of the blood by new generations of parasites. Periodicity may be quotidian, tertian, quartan or double quartan according to the intervals between paroxysms. Periodicity also used to refer to the cyclic appearance in the blood of microfilariae of Wuchereria bancrofti (nocturnal) and Loa loa (diurnal).

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