On Thursday afternoon I received a vaccination for shingles, a subcutaneous injection. The first 24 hours I had no reaction, then later that evening, I developed a fever of 100.8, felt achy in all my joints, a little dizzy and developed a redness at the sight about the size of a deck of cards. I went to bed, took an 800 Ibruprophen, lots of water and woke up this morning with a normal temperature and feeling fine. The redness was still in my arm and it is sore to the touch. I took it easy during the day, but tonight I have developed the same fever. The injection site is sore and very tender to the touch and the same size. I am concerned because I am hosting my 1 month old grandson next week and he has not had his vaccine for chicken pox that I know of. Will I be contagious to him?