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Frequencies and GMT of serum IgG and IgM antibodies against squalene from healthy adults never immunized with vaccines with the MF59 adjuvant
| Antibody | Cohort | No. of serum samples | Frequency (%) of detectable antibodiesa | GMT (range) |
|---|---|---|---|---|
| IgG | U.S. | 43 | 79 | 36.9 (<10-616) |
| European | 50 | 26* | 20 (<10-154) | |
| IgM | U.S. | 43 | 100 | 51.8 (14.9-412) |
| European | 50 | 64* | 31 (<10-334) |
*, P of <0.001 for IgG and IgM antibody titers compared to titers for U.S. cohort.
