Becky, I'm so sorry you're so sick with this! I hope you have someone to take care of you and make some nice hot chicken soup! One thing I thought of though when I read this thread that is important for you and for Kelly. My husband had pertussis when he was four years old - very dangerous for children, he was hospitalized to make sure it didn't get too serious. Here is the important part. They found out he became susesptable to it because the vaccine was not effective for him. Studies have shown that pertussis vaccine is one of the vaccines that does have a higher rate of ineffectiveness (higher than it is for alot of vaccines anyway). The problem of having children who end up with the vaccine not taking is also genetic. My mother-in-law once told me that when my husband and I have children, we should have follow-up testing after the pertussis vaccine to ensure that our children have the pertussis antibodies. With either one of you, it is possible that the vaccine never took when you were a child. If you have children, it might be a good idea to ask your doctor about having them tested for the antibodies - it's an easy test - only involves drawing alittle blood for them to run tests on. Just a precaution. Again, hope you feel better soon.