A large and varied number of parasite systems are subjects of investigation by members of the Centre. Below is a list of infectious agents with links to the laboratories that have an interest in these organisms.
| Organism | Contact person |
| Protozoa | |
| Cryptosporidium parvum | Fecteau, Geary, Ndao, Villeneuve |
| Entamoeba histolytical | Chadee |
| Giardia spp. | Salavati, Tufenkji |
| Leishmania spp. | Cousineau, Descoteaux, Fecteau, Jardim, Matlashewski, Olivier, Ouellette, Papadopoulou, Sato, Tremblay, Ward |
| Neospora caninum | Fecteau, Geary, Scorza, Spithill, Stevenson |
| Plasmodium chabaudi Plasmodium falciparum |
Geary, Georges, Olivier, Scorza, Spithill Bohle, Georges, Ndao, Olivier, Scorza, Ward |
| Toxoplasma gondii | Dzierszinski, Ndao, Olivier |
| Trypanosoma cruzi Trypanosoma brucei |
Jardim, Ndao, Ward Jardim, Prichard, Salavati |
| Helminths | |
| Ancylostoma duodenale | Gyorkos |
| Ascaris lumbricoides | Gyorkos, Scott |
| Brugia pahangi | Geary, Prichard |
| Caenorhabditis elegans | Beech, Dent, Geary, Prichard, Ribeiro |
| Cooperia oncophora |
Prichard |
| Fasciola spp. | Spithill |
| Gyrodactylus turnbulli |
Marcogliese, Scott |
| Haemonchus contortus |
Beech, Dent, Forrester, Prichard, Scott |
| Heligmosomoides polygyrus |
Koski, Scott, Stevenson |
| Necator americanus | Gyorkos |
| Onchocerca volvulus | Geary, Prichard |
| Schistosoma mansoni |
Ribeiro |
| Trichuris trichiura | Gyorkos |
| Wuchereria bancrofti | Geary, Prichard |
| Bacteria | |
| Escherichia coli | Fecteau, Jardim |
| Pseudomonas aeruginosa | Berghuis |
| Streptococcus pneumoniae | Ouellette |
| Viruses | |
| HIV-1 | Tremblay |
| Human papillomavirus | Matlashewski |