Volume 17, Number 4—April 2011
Dispatch
Seasonality of Cat-Scratch Disease, France, 1999–2009
Diane Sanguinetti-Morelli, Emmanouil Angelakis, Hervé Richet, Bernard Davoust, Jean Marc Rolain, and Didier Raoult
Table
Monthly number of patients with cat-scratch disease, France, 1999–2009
| Month | Mean no. patients | Median no. patients | SD |
|---|---|---|---|
| January | 5.4 | 6 | 1.86 |
| February | 4.9 | 6 | 4 |
| March | 4.6 | 2 | 4.2 |
| April | 3.7 | 4 | 2.4 |
| May | 1.6 | 1 | 1.3 |
| June | 1.8 | 1 | 1.9 |
| July | 1.1 | 1 | 1.3 |
| August | 1.1 | 1 | 1 |
| September | 3.1 | 3 | 1.8 |
| October | 3.9 | 4 | 1.8 |
| November | 5.7 | 5 | 3.2 |
| December | 8.4 | 7 | 3.4 |
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