糞口経路
↑ Fenway Community Health-Hepatitis A, B, C
↑ Meyer EA (1996). Other Intestinal Protozoa and Trichomonas Vaginalis in: Baron's Medical Microbiology (Baron S et al, eds.) (4th ed. ed.). Univ of Texas Medical Branch. (via NCBI Bookshelf) ISBN 0-9631172-1-1
↑ Zuckerman AJ (1996). Hepatitis Viruses in: Baron's Medical Microbiology (Baron S et al, eds.) (4th ed. ed.). Univ of Texas Medical Branch. (via NCBI Bookshelf) ISBN 0-9631172-1-1
↑ Wang L, Zhuang H (2004). “Hepatitis E: an overview and recent advances in vaccine research.”. World J Gastroenterol 10 (15): 2157-62. PMID 15259057.