Table 4 Relative risk of infection over time given presence of an index case
From: Invasive meningococcal disease epidemiology and control measures: a framework for evaluation
Setting | 0 to 6 days | 7 to 30 days | 31 to 365 days |
|---|---|---|---|
Household | 1200 | 150 | 8 |
Primary School | 60 | 13 | 1 |
High School | 160 | 7 | 1 |
College | 1.8 | 1.5 | 1 |