I hate to dispute the renowned Dr. Fauci; but that isn’t really what the Moderna study showed.
It was 33 patients from the Stage 1 trial stratified into 3 age groups and tested at various points over 6 months after vaccination.
What this study was measuring is the level of antibody dilution at different time points using three different assay methods and all three assays showed varying results.
Two of the methods showed a few participants actually losing most of their antibodies. One assay showed all participants maintain high levels of antibodies.
The study specifically states “...the antibody titers and assays that best correlate with vaccine efficacy are not currently known.” So they tested with all three.
Interesting. Here is maybe a correlation to the animal world. Millions of cat owners no longer do routine vaccinations. They have their pets ‘titered’ for antibodies. The reason for this is vaccine site sarcoma and other adverse reactions. If the antibodies are there at a certain level, they are considered by the owners to be safe. Their veterinarian will likely disagree as it is unknown if titers truly mean protection. Second even if the titer shows no antibodies it is unknown if the body has ‘learned’ to fight off the disease and when introduced if the body would react by producing the needed antibodies.
“For all forms of antibody testing, it remains confusing and even controversial whether the results are a good measure of immunity.”
Here is an excellent article on regarding the topic and easy to understand how information from humans might be considered.
“I get the impression that some veterinarians are just not doing any vaccinations until the titer falls into the negative threshold level, and then they boost. So that might mean some dogs or cats will go on for multiple years without needing a vaccination. Some develop excellent levels of antibody that are sustained virtually for their lives following the initial vaccination series. And others don’t seem to sustain them that well.”
Dr. Richard Ford, emeritus professor of internal medicine, North Carolina State University College of Veterinary Medicine
https://www.avma.org/javma-news/2016-07-01/titer-or-revaccinate
Even my own veterinarian who has gone on to teach at Virginia Tech wasn’t getting over excited about missing vaccinations in housecats. Indeed at one point when I was fostering a cat recovering from panleukapenia (cat parvo for the dog people) I wanted to booster my own cats. He said it wasn’t “likely” necessary as the panleukapenia vaccine is suspected to last a lifetime in most cats. Result: none in my home picked up even the slightest hint of the dreaded disease. Unfortunately the cat I was fostering didn’t make it and the room had to be sanitized and no fostering for 18 months to allow time for the fomites to die off.
So this really long post about titers and serum assays in animals is just to say if they don’t really know how to apply this to animals who get routine vaccinations (in a field where there is high demand routinely for titers), how well can the medical profession interpret these assays for humans in any meaningful way?