Volume 9, Number 4—April 2003
Research
Dengue Fever in Travelers to the Tropics, 1998 and 1999
Heidi Lindbäck*†, Johan Lindbäck†, Anders Tegnell†, Ragnhild Janzon†, Sirkka Vene†, and Karl Ekdahl†
Table 1
Country of infection for dengue fever casesa
| Country of infection | All cases | Responders | Nonresponders |
|---|---|---|---|
| Thailand |
75 |
50 |
25 |
| Philippines |
5 |
5 |
0 |
| India |
4 |
3 |
1 |
| Caribbean Islands (unspecified) |
4 |
3 |
1 |
| Malaysia |
3 |
3 |
0 |
| Sri Lanka |
2 |
2 |
0 |
| Central America (unspecified) |
2 |
2 |
0 |
| Indonesia |
2 |
0 |
2 |
| Nepal |
1 |
1 |
0 |
| Singapore |
1 |
1 |
0 |
| Cambodia |
1 |
0 |
1 |
| Laos |
1 |
1 |
0 |
| Vietnam |
1 |
0 |
1 |
| Nicaragua |
1 |
1 |
0 |
| Colombia |
1 |
1 |
0 |
| Tanzania |
1 |
1 |
0 |
| Unknown |
2 |
0 |
2 |
| Total | 107 | 74 | 33 |
aDivided by responders and nonresponders to travel questionnaires.
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