This is probably such a silly question, but I will worry and stress not knowing.

Livi is going for her second round of shots today and I was going to use a carrier to take her in instead of her kennel. I bought this carrier about a month ago from ebay and thought she would be more comfortable in it. Since the previous seller said that she had used it for her dog a few times, I wanted to ask you guys what you thought about Livi being it without having all of her shots. I thought I had read that certain diseases could live up to six months. I know, I am being super paranoid but I don't want little Livi to get sick. I told you it's a silly question, but can you guys tell me what you think?
Thanks!
Tammy