PMID- 9722883 OWN - NLM STAT- MEDLINE DCOM- 19980914 LR - 20190815 IS - 0304-8608 (Print) IS - 0304-8608 (Linking) VI - 143 IP - 7 DP - 1998 TI - Experimental infection of pigs with the newly identified swine hepatitis E virus (swine HEV), but not with human strains of HEV. PG - 1405-15 AB - A novel virus of pigs, swine hepatitis E virus (swine HEV), was recently identified and shown to be antigenically and genetically related to human HEV. In the present study, we attempted to infect specific-pathogen-free (SPF) pigs experimentally with swine HEV or with human strains of HEV. Serum samples collected from naturally infected pigs were used as the source of swine HEV. Pigs inoculated intravenously with serum samples containing swine HEV seroconverted to anti-HEV 4 to 8 weeks postinoculation, and the virus spread to an uninoculated pig. Swine HEV was detected in nasal and rectal swab materials as early as 2 weeks postinoculation and for 4 to 8 weeks thereafter. Viremia appeared 4 to 6 weeks postinoculation and lasted 1 to 3 weeks. The inoculated pigs appeared clinically normal and serum liver enzymes were not significantly elevated. In contrast, pigs were not infected when inoculated intravenously with about 10(5) monkey infectious doses of one of two human strains of HEV (Sar-55 or Mex-14). FAU - Meng, X J AU - Meng XJ AD - Hepatitis Viruses Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA. FAU - Halbur, P G AU - Halbur PG FAU - Haynes, J S AU - Haynes JS FAU - Tsareva, T S AU - Tsareva TS FAU - Bruna, J D AU - Bruna JD FAU - Royer, R L AU - Royer RL FAU - Purcell, R H AU - Purcell RH FAU - Emerson, S U AU - Emerson SU LA - eng PT - Comparative Study PT - Journal Article PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 RN - 0 (DNA Primers) RN - 0 (Hepatitis Antibodies) RN - 0 (RNA, Viral) SB - IM MH - Animals MH - Base Sequence MH - DNA Primers/genetics MH - Hepatitis Antibodies/blood MH - Hepatitis E/immunology/*veterinary/virology MH - Hepatitis E virus/genetics/immunology/*pathogenicity MH - Hepatitis, Viral, Animal/immunology/*virology MH - Humans MH - RNA, Viral/genetics/isolation & purification MH - Species Specificity MH - Swine MH - Swine Diseases/immunology/*virology EDAT- 1998/09/02 00:00 MHDA- 1998/09/02 00:01 CRDT- 1998/09/02 00:00 PHST- 1998/09/02 00:00 [pubmed] PHST- 1998/09/02 00:01 [medline] PHST- 1998/09/02 00:00 [entrez] AID - 10.1007/s007050050384 [doi] PST - ppublish SO - Arch Virol. 1998;143(7):1405-15. doi: 10.1007/s007050050384.