I considered it for my toddler and did heaps of research on it. Two major things jumped out at me. 1.) 80-90% of all people in my state (WA) who have had WC have been fully vaccinated. So we (and actually the CDC) are now assuming is that the vaccine is not as effective as once thought, or the strain has mutated. It's a bacteria, and bacteria get resistance and mutate from antibiotics so it makes sense it could due to vaccines. 2.) It is impossible to get a pertussis vaccine without either diptheria and tetanus mixed in (DTaP or Tdap), and there are lots of other ingredients in there such as aluminum, antibiotic residue, formaldehyde, etc...
I would not have considered it except that we are about to have a new baby in the house. I think for adults and healthy children over the age of 1, it might be a terrible experience, but they will come out the other end just fine. I am planning to take other steps to protect the new baby from pertussis as much as humanly possible. All adults around the baby for the first 4 months will have Tdap or titer proven immunity to pertussis (I know, I know, Tdap might not be effective anyway but to me it's worth it to have consenting adults get the vax just in case it can help) and we will also be "cocooning" the baby--not bringing her into public (indoor) places for the first 4 months. After much research we decided to leave our 3.5 year old unvaxxed. She would have to have 3-4 doses of DTaP in what I feel to be a very short time to get the *poor* immunity the pertussis vax offers, and I didn't want to take that risk for her. I am not anti-vax at all. I am just a concerned parent who feels like the possible benefits must outweigh the possible risks to make me feel comfortable with vaccines for children. My children, not others....
If there was such thing as a monovalent "clean" (no Al, etc) vaccine for pertussis only that did not require multiple doses and had a better effectiveness ratio than 56-80% than I believe we would have gotten it for our toddler (due to the infant coming). But the current choice is less than ideal to me, unfortunately.
I have no problem giving antibiotics to stop transmission if anyone in our family does get it. Both to protect the other family members and the general public. But yes, it is true that antibiotics will not actually help the individual with pertussis get better quicker. I am willing to try SA if needed because why not? The only side effect I have heard of is loose stools. But I hope we will never need it. When my DD had come down with a cough during the last year (when pertussis has been declared epidemic in my area) I bring her straight to the pediatrician (through a side door) to be swabbed for pertussis. I think early ID is key to not spread the bacteria to others. I always keep her out of public until the results come back (both times negative, it was just some nasty viruses.)
Follow Mothering