From: Rapid research response to the 2009 A(H1N1)pdm09 influenza pandemic (Revised)
Serologic status | Group size | HAI antibody | Neutralizing antibody |
---|---|---|---|
≥4-Fold Rise in Titer (Acute + convalescent sera available) | 15 | 8 | 11 |
Acute Titer ≥ 20; No Significant Rise in Titer | 15 | 6 | 2 |
Convalescent Titer ≥ 20 (No acute sample) | 10 | 9 | 9 |
Titer < 20 in All Sample(s) | 26 | 2 | 2 |
Titer ≥ 40 in Acute and/or Convalescent Sample | 26 | 18 | 20 |
No Data | 4 | 4 | 4 |