I didn't realize that it was that contagious! You're poor babies!! Hope they recover soon. We gave Chase Bordatella last November before he went to puppy class but I think it only lasts for six months. I think I remember reading that it wasn't a good idea to keep repeating Bordetella unless you plan to board him which we don't. Now we are concerned because he meets new dogs and kisses them and we don't want him to get a cough. What do you all suggest? Thanks.