I hate when they don't post links....
https://www.medrxiv....7365v1.full.pdf
Notably, among these patients, there were ten patients whose NAb titers were under the detectable level of our assay (ID50: < 40)
So first of all, it does mean they had zero, as the article seems to imply. It means they were under 40.
From an immunolgy Doc, Charles Muscoplat, PhD Immunology, University of Minnesota when asked about antibody formation
This answer is a little bit complex. Actually you start making antibodies within just a few days. It does take time for the immune system to recognize the vaccine antigen; process and begin the genetic machinery to produce antibodies. Slowly you begin making antibody producing cells just a few. Then these cells divide and multiply 2 into 4; 4 into 8, 8 into 16 etc etc. This is called CLONAL EXPANSION so even though you are making antibodies in just a few days there are only a tiny number of cells in your body making these specific antibodies. But over time the CLONAL EXPANSION by cell division increases the number of cells and thus the amount of antibody. Thus, it usually takes about 2 to 3 weeks before you see a massive amount of antibodies circulating in the blood. If you could measure very small quantities you could actually see some tiny amount of antibody being produced in a few days time.
And lo and behold....why am I not surprised?
Blood work was taken at time of Admission to hospital...doh!
All patients were diagnosed with laboratory-confirmed COVID-19 and discharged after meeting effective national treatment standards. Clinical information, including complete blood counts, blood biochemistry was collected at the time of admission.
Am so darn tired of the fear mongering from incredibly lazy reporters.