Table 1.

Animals used in this study

VirusStock titerNo. of animalsa examined at:
60 h72 h84 h93 h96 h
PRV-Be3.5 × 108 4Noneb NoneNoneNone
PRV-Be4.0 × 108 23121
PRV-253.5 × 108 23c 421
PRV-262.3 × 108 23d 323
PRV-913.0 × 108 13111
  • a Numbers of animals that were euthanized and brains that were analyzed at the indicated times postinfection.

  • b No animals infected with PRV-Becker survived more than 67 h postinfection.

  • c Four animals infected with PRV-25 died unexpectedly at approximately 72 h postinfection, and these tissues were not suitable for processing. They are not included in the numbers shown in the table.

  • d One animal infected with PRV-26 died unexpectedly at approximately 72 h postinfection, and this tissue was not suitable for processing. This animal is not included in the number shown in the table.