Effect of Iota carageenan on the replication of HRVstrains 1A, 2, 8, 14, 16, 39, 83 and 84 on human nasal epithelial cells. HNep cells were grown in 96-well plates were infected with different HRV strains (indicated at the top of each panel; 0,1 TCID50/cell) in the presence of Iota-Carrageenan at the concentrations indicated at the x-axis. 30 minutes after infection the inoculum was removed and medium containing Iota-Carrageenan with the same concentration was added. Viral titers in the supernatants of infected cells were determined after 48 h by TCID50 assay on HeLa cells (y-axis). Bars represent means from four parallel experiments, standard deviations are indicated.