Volume 13, Number 6—June 2007
Letter
Human Oestrus sp. Infection, Canary Islands
Marion Hemmersbach-Miller*†, Rita Sánchez-Andrade‡, Alicia Domínguez-Coello§, Adnan Hawari Meilud*, Adolfo Paz-Silva‡, Cristina Carranza¶, and Jose-Luis Pérez-Arellano¶
Table
Results and interpretation, Oestrus sp. infection, Canary Islands*†
| Human | Dogs | Sheep | Goats | ||||
|---|---|---|---|---|---|---|---|
| OD |
Interpretation |
OD |
Interpretation |
OD |
Interpretation |
OD |
Interpretation |
| 0.658 | Positive | 0.677 | Positive | 0.639 | Positive | 0.838 | Positive |
| 0.824 | Positive | 0.685 | Positive | 0.535 | Positive | ||
| 0.226 | Negative | 0.594 | Positive | ||||
| 0.187 | Negative | 0.673 | Positive | ||||
| 0.622 | Positive | ||||||
*Results are expressed as optical density (OD), and interpretation (positive/negative) was made by using the following cut-offs: in sheep: 0.369 (0.1718 + 3 × 0.066); goats: 0.406 (0.211 + 3 × 0.065); human 0.32 (0.17 + 3 × 0.049); dogs: 0.493 (0.37 + 3 × 0.041).
†One sample of positive and negative control samples was added to each plate. Sheep and goat sera from animals with a known history of O. ovis exposure were used. When positive sera were not available (human and dogs), we used only negative sera, and the cut-off was estimated as the mean OD of the negative sera plus 3 SDs (7).
