Table 1.
Proportion (%) of positive DFA results in nasopharyngeal aspirates by virus and by year, 1998-2010
| Epidemiogical years | 98/99 | 99/00 | 00/01 | 01/02 | 02/03 | 03/04 | 04/05 | 05/06 | 06/07 | 07/08 | 08/09 | 09/10 | 1998- 2010 |
1998- 2006 |
2006- 2010 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADV | 3 | 3 | 3 | 3 | 1 | 2 | 4 | 4 | 3 | 2 | 2 | 3 | 3 | ||
| RSV | 32 | 15 | 32 | 12 | 31 | 15 | 26 | 13 | 26 | 15 | 23 | 12 | 21 | ||
| IFA | 7 | 12 | 2 | 6 | 4 | 6 | 6 | 0.2 | 3 | 2 | 3 | 2 | 4 | ||
| IFB | 2 | 0 | 0 | 2 | 1 | 0 | 0.1 | 2 | 0 | 0.2 | 0.4 | 0 | 0.6 | ||
| PIV | 5 | 4 | 5 | 3 | 4 | 6 | 3 | 2 | 2 | 3 | 4 | 4 | 4 | ||
| hMPV | 0.2 | 4 | 1 | 8 | 3 | ||||||||||
| Picorna | 2 | 24 | 26 | 33 | 28 | 27 | |||||||||
| Total | 49 | 34 | 43 | 26 | 41 | 29 | 38 | 24 | 57 | 53 | 66 | 57 | 44 | 35 | 58 |
| Summer | 28 | 16 | 15 | 10 | 24 | 20 | 8 | 4 | 48 | 48 | 63 | 43 | 16 | 52 | |
| Winter | 58 | 42 | 58 | 34 | 41 | 40 | 64 | 33 | 60 | 60 | 70 | 68 | 46 | 65 | |
An epidemiological year lasts from May 1st to April 30th of the following year
ADV = adenovirus; RSV = respiratory syncytial virus; IFA = influenza A; IFB = influenza B; PIV = parainfluenza viruses 1-3;
hMPV = human metapneumovirus; picorna = respiratory picornaviruses