Besides antibiotics, antimicrobials such as antivirals have been found to prevent pre-malignant stages of virus-associated cancers, such as IFN-free anti-viral therapies for HCV [207], zidovudine and valganciclovir for KSHV [208], and anti-worm medication such as praziquantel or albendazole to eliminate flukes and schistosomiasis [209]. This evidence concerns the gene IFNA1 and schistosomiasis.