Volume 20, Number 4—April 2014
Research
Underdiagnosis of Foodborne Hepatitis A, the Netherlands, 2008–20101
Mariska Petrignani
, Linda Verhoef, Harry Vennema, Rianne van Hunen, Dominique Baas, Jim E. van Steenbergen, and Marion P.G. Koopmans
, Linda Verhoef, Harry Vennema, Rianne van Hunen, Dominique Baas, Jim E. van Steenbergen, and Marion P.G. Koopmans
Table 3
Hepatitis A transmission modes, the Netherlands, 2008–2010*
| Transmission | No. reported | Sequenced, no. (%) |
||||
|---|---|---|---|---|---|---|
| Total | Assigned category confirmed | Unresolved | Assigned category misclassified and reassigned | |||
| Travel-associated | 141 | 66 (47) | 40 (61) | 23 (35) | 3 (5) | |
| Person-to-person | 76 | 53 (70) | 53 (100) | 0 | 0 | |
| Male-with-male sex | 33 | 25 (76) | 23 (92) | 2 (8) | 0 | |
| Foodborne | 18 | 17 (94) | 7 (41) | 9 (53) | 1 (6) | |
| Unknown |
153 |
87 (57) |
NA |
45 (52) |
42 (48) |
|
| Total |
421 |
248 (59) |
123 (50) |
79 (32) |
46 (19) |
|
| *NA, not applicable; if a category was assigned after sequencing, then the assumption “unknown” was misclassified. | ||||||
1Preliminary results of this study were presented at the 15th Annual Meeting of the European Society for Clinical Virology; 2012 September 4–7; Madrid, Spain.
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