Volume 10, Number 7—July 2004
Research
Q Fever Outbreak in Industrial Setting
Hugo C. van Woerden*
, Brendan W. Mason*, Lika K. Nehaul†, Robert Smith*, Roland L. Salmon*, Brendan Healy‡, Manoj Valappil§, Diana Westmoreland§, Sarah de Martin†, Meirion R. Evans*, Graham Lloyd¶, Marysia Hamilton-Kirkwood‡, and Nina S. Williams*
, Brendan W. Mason*, Lika K. Nehaul†, Robert Smith*, Roland L. Salmon*, Brendan Healy‡, Manoj Valappil§, Diana Westmoreland§, Sarah de Martin†, Meirion R. Evans*, Graham Lloyd¶, Marysia Hamilton-Kirkwood‡, and Nina S. Williams*Table 4
Summary of highest phase 2 CFT results recorded for each person in the cohort in Q fever outbreak, Newport, Wales, August–September 2002a
| Highest CFT | AQF cases | Noncases | Past exposure | Possible cases |
|---|---|---|---|---|
| <8 |
4 |
104 |
5 |
35 |
| 8 |
4 |
2 |
3 |
2 |
| 16 |
12 |
1 |
0 |
2 |
| 32 |
14 |
1 |
0 |
2 |
| 64 |
16 |
0 |
0 |
1 |
| 128 |
21 |
0 |
0 |
0 |
| 256 |
17 |
0 |
0 |
0 |
| 512 |
5 |
0 |
0 |
0 |
| 1,024 |
2 |
0 |
0 |
0 |
| Totals (253) | 95 | 108 | 8 | 42 |
aCFT, complement fixation test; AQF, acute Q fever.
