J&J used a 1 shot initial dose and then a booster. It was starting to get a reputation for causing problems and people started to get leery of it. The Public Health authorities said it was ok to mix n match Pfizer/Moderna with following boosters. Ask Gavin Newsome how that went. He did J&J then a Moderna booster.
As far as numbers re: spike protein amount goes I would have to look around my notes but don't know if I kept that info. What you really need to know is how much Mrna is delivered per dose.
I do know Pfizer introduces 30 micrograms of mRna per dose in the two initial doses and Moderna is 100 micrograms per dose and they are the 2 players left. That is why if you get “boosted” after a J&J jab it likely be Pfizer or Moderna.
At present a problem is the mRna “package” leaves the injection site and lodges in various systems such as the ovaries, testes liver etc. and does not clear. It even crosses the brain/blood barrier. A study showed the mrna was active in the body at least 60 days after injection.
Since you already went J&J and a booster and it is over a year and you have not said you had problems you seem to be lucky. I have seen vaccine injury within my family.
The choice is yours and yours alone to be “boosted”. I just offer my experiences and info I have gathered.
My SIL & BIL went J&J then a Pfizer booster. At ~ 5-6 mos. my SIL was fine, so far, but my BIL developed a Glioblastoma ( brain cancer tumor). It was taken out and luckily the surgeon believes they got it all. He seems to be recovering but his life is materially shortened. Survival median is ~15-16 mos. The occurrence of this in his ethnic group is very low He is Asian in his 50’s
Maybe he was really unlucky maybe not, Can I prove it definitively. No. He had no need to get Jabbed. Athletic and healthy as a horse. Lance Armstrong athletic. Covid was no threat to him. Just my 2cts.
Even though I am 84, I am inclined to just stick with my supplements and avoid more Covid jabs. I might do flu again, I have done that particularly regularly for a decade or more and never had the flu in all that time. Never had much symptoms from flu shot except a little fatigue the next day. Now for both my J&J and flu, in addition to my usual supplements which I have been taking daily for 50 years, I do the following. The day before a shot I add Quercetin and zinc to my other supplements (which includes Turmeric Curcumin with Ginger) and continue taking extra Q & Z for the next week. With both J&Js there was absolutely NO sign of anything except for the first 10 minutes after a needle puncture’s hurt—no warmth, not redness, no swelling, no symptoms the next day or later. I will also follow that procedure with any other shots I take.
When I talk with mothers, I urge them to never let the doctor give their wee ones more than 3 pathogens as vaccines at a time. I think it is ridiculous to be giving 5 and 6 kinds of vaccine at one time, not even to our soldiers. I also urge anyone not to get shots if not feeling healthy. Occasionally soldiers in basic die after vaccines. They are already run down from heavy physical exercise and lack of sleep. No wonder a few don’t make it. Forcing hospital workers, already overworked and stressed with Covid, to add a still “experimental” vaccine is a recipe for tragedy.
I do believe in masking with an N-95 mask when in public places, at least for me at 84, I did examine studies on virus spread when masked. A mask blocks a lot especially at 6 feet, and even at 3 feet, the fall of droplets from an unmasked cough or sneeze is significant over space. Reducing the number of pathogens inside your body helps keep one from getting sick. Last Christmas I attended a birthday party at a Chinese restaurant. We were all vaccinated, but since we were passing around a number of different plates of food, I asked everyone to hand sanitize, which we did. About 10 days later, my nosed began to run like a faucet with clear thin mucus. I started taking 2 grams of Vitamin C every 2 or 3 hours to control the flow. After 24 hours I had taken 14 grams of C, the symptom was gone and I felt fine. I had also taken Quercetin and Zinc twice.
If my partner’s son says this year I can’t come to Thanksgiving dinner without a shot, I think I will say he has a heck of a nerve telling me to do that when he has been fully vaccinated as a doctor seeing patients, had a bad reaction to Moderna, had Covid and been miserably sick, and is a lot bigger danger to me than I would be to him with my limited and masked/protected exposure to the public.