A commonly used index of malaria transmission intensity is the Plasmodium falciparum parasite rate (PfPR), the proportion of the population found to carry asexual blood-stage parasites. 25 сент. 2007 г.
What is parasite rate in malaria?
On the basis of previous observations and development of theory, the authors first postulate that the effects of complete interruption of transmission should, ideally, include a regular progressive decrease of falciparum parasite rates in the ratios of 1: 0.4 in 6 months, 1: 0.16 in 12 months and 1: 0.026 in 24 months.
How do you calculate parasite count?
Parasite densities (parasite/μl of whole blood) were then calculated as follows: = (Number of parasites counted/WBC counted) × WBC count/ μL of participant.
What is the spleen rate?
Spleen rate is defined as the proportion of persons of a defined age range in a given population who have enlarged spleen, expressed in percentages [15].
How is malaria API calculated?
Annual Parasitic Incidence (A.P.I.) = Total no. of positive slides for parasite in a year x 1000 / Total population. Annual Falciparum Incidence = Total positive PF in a year x 1000 / Total population.
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