Table 1 Summary of diagnosed influenza cases covered by our questionnaire investigation
Year | Type | Cases | Households | Total Cases | ||||
|---|---|---|---|---|---|---|---|---|
a. Number of cases in each year | ||||||||
1 | A | 243 | 189 | |||||
B | 104 | 86 | ||||||
2 | A | 263 | 204 | |||||
B | 222 | 177 | ||||||
3 | A | 259 | 189 | |||||
B | 11 | 8 | 270 | |||||
4 | A | 175 | 147 | |||||
B | 289 | 227 | 464 | |||||
5 | A | 339 | 249 | |||||
B | 18 | 13 | 357 | |||||
6 | A | 237 | 168 | |||||
B | 182 | 150 | 419 | |||||
Total | 2342 | 1807 | ||||||
b Number of households of each household size | ||||||||
Household size | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Total |
A | 37 | 62 | 318 | 544 | 149 | 30 | 6 | 1146 |
B | 16 | 15 | 182 | 340 | 85 | 18 | 5 | 661 |
Total | 53 | 77 | 500 | 884 | 234 | 48 | 11 | 1807 |