There are also bacteria, fungi, and viruses that can cause cancer. It is well-documented and well-proven. I’m going to provide you with a list so that you understand that being one-dimensional and focusing only on parasites is not only wrong, but also dangerous.
Here is a list just from my collected information over the years:
Virus: Epstein-Barr Virus
Associated Cancer(s): Lymphoma, Nasopharyngeal Carcinoma, Gastric Cancer
Virus: Hepatitis B Virus
Associated Cancer(s): Liver Cancer
Virus: Hepatitis C Virus
Associated Cancer(s): Liver Cancer, Lymphoma
Virus: Human Papillomavirus
Associated Cancer(s): Cervical Cancer, Penile Cancers, Throat Cancer, Head and Neck Cancers
Virus: Human T-cell Lymphotropic Virus Type 1
Associated Cancer(s): Leukemia, lymphoma
Virus: Herpesvirus
Associated Cancer(s): Kaposi Sarcoma, Lymphoma
Virus: Human Immunodeficiency Virus Type 1
Associated Cancer(s): Kaposi Sarcoma, Non-Hodgkin Lymphoma, Cervical Cancer
Virus: Simian Virus (SV40)
Associated Cancer(s): Bone Cancer, Brain Cancers, Lymphoma
Bacteria: Helicobacter Pylori
Associated Cancer(s): Gastric Cancer, Lymphoma
Bacteria: Fusobacterium Nucleatum
Associated Cancer(s): Colorectal Cancer
Bacteria: Enterotoxigenic Bacteroides Fragilis
Associated Cancer(s): Colorectal Cancer
Bacteria: Salmonella Enterica Serovar Typhi
Associated Cancer(s): Gallbladder Cancer
Bacteria: Chlamydia Trachomatis
Associated Cancer(s): Cervical Cancer
Fungus: Aspergillus Spp.
Associated Cancer(s): Liver Cancer
Fungus: Malassezia Spp.
Associated Cancer(s): Pancreatic Cancer
Fungus: Candida Albicans
Associated Cancer(s): Oral Cancer, Gastrointestinal Cancer
And yes, along with the other pathogens, there are also parasites that cause cancer, and here they are!
Parasite: Schistosoma Haematobium
Associated Cancer(s): Bladder Cancer
Parasite: Opisthorchis Viverrini
Associated Cancer(s): Bile Duct Cancer
Parasite: Clonorchis Sinensis
Associated Cancer(s): Bile Duct Cancer
Parasite: Schistosoma Mansoni
Associated Cancer(s): Colorectal Cancer, Liver Cancer
Parasite: Cryptosporidium Parvum
Associated Cancer(s): Colorectal Cancer
Parasite: Plasmodium Falciparum
Associated Cancer(s): Lymphoma
Parasite: Toxoplasma Gondii
Associated Cancer(s): Brain Cancer
Ps. There are NOT the only possible causes of cancers! They are only evidence against the fad theory that only parasites cause cancer! Environmental cancers exist in abundance!