Volume 17, Number 12—December 2011
Research
Hepatitis E Virus in Rats, Los Angeles, California, USA
Table 2
Rat HEV in serial fecal samples of experimentally infected laboratory rats, Los Angeles, California. USA*
Animal | Day postinfection |
||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | 25 | 27 | 29 | 31 | 33 | 35 | |
Rat B76 | |||||||||||||||
Infectious† | NT | NT | NT | – | + | – | + | – | – | – | – | – | – | NT | NT |
RT-PCR | NT | NT | NT | + | + | + | + | + | + | – | – | – | – | NT | NT |
Serum antibody against HEV | NT | NT | NT | – | – | – | – | – | – | – | – | + | + | + | + |
Rat B84 | |||||||||||||||
Infectious† | + | – | + | + | + | – | – | – | – | – | NT | NT | NT | NT | NT |
RT-PCR | + | + | + | + | + | – | – | – | – | – | NT | NT | NT | NT | NT |
Serum antibody against HEV | – | – | – | – | – | – | – | + | + | + | + | + | + | + | + |
*HEV, hepatitis E virus; NT, not tested; –, negative; +, positive; RT-PCR, reverse transcription PCR.
†As measured by transmission to another rat.
1Current affiliation: Embassy of France, Beijing, People’s Republic of China.
2Current affiliation: National Institutes of Health, Frederick, Maryland, USA.