Parasite Counter

Cell counter for measuring the percent parasitemia in a blood sample.

Select input type

Keyboard Counter
Direct Input

Instructions:
Click the area that says "Click here to count" and use the 1 and 3 keys to count Parasites and RBCs, respectively.
OR
Click/Tap the corresponding buttons to count.
(The "Add" button displays the current mode and can be toggled to "Subtract")
N.B. Counter will automatically tally a RBC with each parasite counted.

Enter the parasite and RBC counts below using your keyboard.

Parasite percentage (%):

Enter the Total number of parasites
Enter the total number of red cells

Notice: CellCounter is intended to be used as a visual tallying aid for manual cell counting. Any calculations displayed by the tool are provided for informational and confirmatory purposes only and must be independently verified in accordance with institutional SOPs prior to result reporting.