Stumpy cells are infectious to the tsetse.
Peak parasitaemia is increased and the peak is delayed for both slender and stumpy cells.
Slender cells divide rapidly in the bloodstream and other organs before transforming into non-dividing stumpy forms.
Parameter a4, the stumpy cell death rate, is only marginally significant in mouse 3k.
Instantaneous transition (dashed lines) causes a drop in peak parasitaemia and earlier occurrence of stumpy cells.
We predict that stumpy cells die at a rate of approximately 0.012/h (parameter a4).
This is necessary because we observe stumpy cells at all times, in particular, during the exponential growth phase.
One subpopulation that differentiated at the background rate into intermediate cells but never fully developed into stumpy cells.
