I got my first vaccination on the 28th at the Health Center in Hesperia. I had made an appointment on line. (I had no problems doing that on the San Bernardino County site.) I got there 35 minutes early, and was checked in immediately. It was quite well organized, and the employees were pleasant, helpful, and professional. The whole thing took me about an hour, including the 15 minute waiting period afterward. My biggest question (Is there a restroom?) was answered in the affirmative. I advise taking something to do while waiting. (I took a crossword puzzle book.) An hour before, I took a non-drowsy allergy pill and used my asthma inhaler. (Something I had learned to do, from my allergist, before the allergy shots that I took for several years.) No side effects, except for a little soreness at the injection site the next day. I have not yet been able to schedule the 2nd shot, as my time frame for that has not shown up yet. No problems.