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Rhetts_mama · 05-11-2010, 03:09 PM

Vaccines take a couple of weeks to go in to full effect and a one time dose doesn't develop immunity. They will NOT prevent a dog who is already infected with the Parvo virus from developing it or spreading it.

05-11-2010, 03:09 PM	#12
Rhetts_mama Donating YT 4000 Club Member Join Date: Apr 2010 Location: Georgia Posts: 5,959 Blog Entries: 1	Vaccines take a couple of weeks to go in to full effect and a one time dose doesn't develop immunity. They will NOT prevent a dog who is already infected with the Parvo virus from developing it or spreading it.