Table 1.

Subject Demographics.

Parameter	Infected, No Vaccine	Infected + Vaccine	Uninfected + Vaccine
N	8	3	8
Gender, male/female, n	6/2	1/2	3/5
Age, years, mean ± SD	61 ± 18	55 ± 1	40 ± 14
Age, years, range	43‒87	54‒55	28‒63