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PLoS Neglected Tropical Diseases Issue Image | Vol. 4(7) July 2010

The helminth fluorescent bioassay: An objective tool for quantifying schistosome viability.

Confocal microscopy of Schistosoma mansoni schistosomula illustrates the ease by which dead (propidium iodide-positive, red individuals) and live (fluorescein diacetate-positive, green individuals) parasites can be distinguished using a helminth fluorescent bioassay (HFB) described by Peak et al. (doi:10.1371/journal.pntd.0000759). It is anticipated that the HFB will be useful in objectively measuring schistosome survival during immunological assays (antibody- or complement-mediated killing), RNAi investigations, and drug screening protocols.

Image Credit: Emily Peak

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The helminth fluorescent bioassay: An objective tool for quantifying schistosome viability.

Confocal microscopy of Schistosoma mansoni schistosomula illustrates the ease by which dead (propidium iodide-positive, red individuals) and live (fluorescein diacetate-positive, green individuals) parasites can be distinguished using a helminth fluorescent bioassay (HFB) described by Peak et al. (doi:10.1371/journal.pntd.0000759). It is anticipated that the HFB will be useful in objectively measuring schistosome survival during immunological assays (antibody- or complement-mediated killing), RNAi investigations, and drug screening protocols.

Image Credit: Emily Peak

https://doi.org/10.1371/image.pntd.v04.i07.g001