borderline significantp = 0.080
One month after the third and fourth dose, the levels were 226 BAU/ml (IQR: 7.0; 294 BAU/ml) and 433 BAU/ml (IQR: 326; 798 BAU/ml) with the increase being borderline significant (193 BAU/ml, 95% CI: −22; 569 BAU/ml, p = 0.080).