I have just found out today, from our vets, that the 5 puppies should not be kept together with the mum-dog who has TVT as TVT spreads through contact. Hence, I have informed the shelter about it and the puppies need to be isolated from the mother, given a bath and hand-fed.
The shelter needs a fosterer VERY urgently to save these puppies. The mother-dog can then be treated with chemotherapy jabs.