My roommates pups have been diagnosed and are currently being treated for parvo at home.?

I warned my roommates about having their pups vaccinated from day one, I told them about parvo, what it will do and how much it would cost to treat the animal. They didn't listen. My cousin had his akita, Kane, for 7 months, he was the worst of the two, he had to be hospitalized and treated with IV fluids and meds. My sister had her maltipoo, Jade, for 5 mnths, she was treated at home. They're doing great, my roommates wallets are not, but they learned their lesson, my problem is my dog Roxy, who is vaccinated and tested negative for parvo, had a litter, I have them isolated from the Kane and Jade, I now you can carry the virus on your shoes and clothes which is why I stay away from them and take my shoes off before going near the pups and Roxy. I know parvo can live at room temp for up to 6mths and it incubates for 2wks after exposure. My Question after they complete antibiotics, how long will it be for Kane and Jade to be cleared of parvo and allowed around the pups and Roxy?