Figure 1.
MDBK monolayers infected with pre-treated sporozoites at 24 HPI. Pre-treatment with the lowest doses of essential oils showed little reduction in infection; almost no intracellular sporozoites were found when the highest doses were used. MDBK morphology was not affected by the treatment. ORE, oregano; GAR, garlic; (5), 5 μg/ml; (100), 100 μg/ml. Bars ~30 μm.