From: Oseltamivir for treatment and prevention of pandemic influenza A/H1N1 virus infection in households, Milwaukee, 2009
Day of index oseltamivir (onset = 0)
Total number of households
Secondary attack
Percent
0
8
1
12.5%
21
4
19.0%
2
11
3
27.3%
3+
51
19
37.3%
Never
44
10
22.7%
HH size
2-3
48
7
14.6%
41
14
34.1%
5+
46
16
34.8%