When did you first become ill with fever, cough or sore throat?

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit
Upper 95% Confidence
Limit
Within the past week (past 1 to 7 days) 96 19.4 2.7 14.1 24.7
2 Weeks ago (past 8 to 14 days) 136 33.9 3.4 27.2 40.6
3 to 4 Weeks ago (past 15 to 30 days before today) 208 46.7 3.5 39.8 53.6

Among respondents who reported having a fever during the past month
and a cough &/or sore throat, excluding unknowns and refusals.
 
ASKED ONLY FROM SEPTEMBER THROUGH DECEMBER OF 2009