That's horrible for your mom and you - and Lulu -
Some breeders are very good at playing dumb -- this isn't her first rodeo and she knows just what she's doing since your poor puppy was infected
there are probably others in her care or sold that are too
I hope you do go after her - these people are profiting off the backs of dogs and
not taking care of them - it's their job to ensure they're happy and healthy
ALL THE BEST ! I hope you all recover