Fig. 3From: Antiviral effect of compounds derived from the seeds of Mammea americana and Tabernaemontana cymosa on Dengue and Chikungunya virus infectionsAntiviral effects on viral production (DENV-2/NG or CHIKV/ACol) using the pre-treatment strategy. The cells were treated with each compound at a concentration of 200 μg/mL and were subsequently infected. a Effects of the compounds extracted from the M. Americana seeds. b Effects of the compounds extracted from the T. cymosa seeds. Statistically significant inhibitions are observed only in the cultures treated with coumarin A or coumarin B (Student’s t-test, p < 0.05)Back to article page