Table 1

HAI antibody titer to H1N1 viruses in uninfected, previously infected, or previously immunized mice that received 1999 NC HA prime-boost immunization.

MouseExposureImmunizationHAI (1934 PR8)HAI (1999 NC)HAI (2007 Bris)
Week −4Week 0Week 11Week −4Week 0Week 11Week −4Week 0Week 11
1None1999 NC<20<20<20<20<20640<20<201280
2None1999 NC<20<20<20<20<20640<20<201280
3None1999 NC<20<20<20<20<20>2560<20<201280
4None1999 NC<20<20<20<20<20>2560<20<201280
5None1999 NC<20<20<20<20<201280<20<20>2560
6Infection (PR8)1999 NC<201280>2560<20<20>2560<20<20>2560
7Infection (PR8)1999 NC<201280>2560<20<20>2560<20<20>2560
8Infection (PR8)1999 NC<20640>2560<20<20>2560<20<20>2560
9Infection (PR8)1999 NC<201280>2560<20<20>2560<20<20>2560
10Infection (PR8)1999 NC<201280>2560<20<20>2560<20<20>2560
11Vaccine (PR8)1999 NC<2040640<20<20>2560<20<20>2560
12Vaccine (PR8)1999 NC<20160640<20<20>2560<20<20>2560
13Vaccine (PR8)1999 NC<208080<20<20>2560<20<20>2560
14Vaccine (PR8)1999 NC<20160>2560<20<20160<20<201280
15Vaccine (PR8)1999 NC<2080<20<20<20>2560<20<20>2560