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Detection of Toxoplasma gondii DNA from washed lettuce samples bought in farmer markets or supermarkets in summer (June–August) and autumn (September–November).
| Location Purchased | Season | Number of PCR 1 Positives |
|---|---|---|
| Farmer markets (n = 76) | Summer (n = 15) | 1 |
| Autumn (n = 61) | 3 | |
| Supermarkets (n = 24) | Summer (n = 10) | 0 |
| Autumn (n = 14) | 2 |
1 Burg et al. [27].
