Table 1 Clinical presentation reported for the deceased patients with a laboratory-confirmed influenza A(H1N1)2009 virus infection, the Netherlands 2009-2011 (n = 103)
Pandemic season 2009-2010 N = 65 | Influenza season 2010-2011 N = 38 | |||
|---|---|---|---|---|
Clinical presentation | n | (%) | n | (%) |
respiratory, including ARDS* | 26 | (40) | 16 | (42) |
systemic | 11 | (17) | 7 | (18) |
neurological | 3 | (5) | 1 | (3) |
super infection | 2 | (3) | 2 | (5) |
cardiovascular | - | 2 | (5) | |
unknown | 23 | (35) | 10 | (26) |