The belly is filled with dialysate fluid, toxins are attracted into
the fluid over several hours and the fluid (with its toxins) is drained from the belly at the end of the procedure.
Over several hours, Midingi and Lukusa work their way through the bats that were caught in the mist net, using sterile cotton swabs to collect saliva, feces, and blood samples — the
fluids that are most likely to transmit viruses.