Risk factors associated with typhoid fever in Son La province, northern Vietnam.
Between July and December 2002, we undertook a hospital-based case-control study to identify risk factors associated with typhoid fever in Son La province, northern Vietnam. Among 617 suspected cases, 90 cases of typhoid fever were confirmed by blood or stool culture. One hundred and eighty controls...
| Main Authors: | , , , , , |
|---|---|
| 格式: | Journal article |
| 语言: | English |
| 出版: |
2005
|