A quick perusal of several sources indicates that the virus can remain infectious for up to 6-7 months in the environment.
See Veterinary Q & A: Parvovirus Infection in Dogs.
[ March 31, 2004, 10:12 PM: Message edited by: Betsy Iole ]
See Veterinary Q & A: Parvovirus Infection in Dogs.
[ March 31, 2004, 10:12 PM: Message edited by: Betsy Iole ]