Vero cells were inoculated and infected with DENV-2 for 1.5 h, washed with citrate buffer to remove excess surface bound virus, and covered with an overlay medium to prevent secondary infection. Initial virus plaques STA-9090 were allowed to form in the subsequent infections and CHLA, PUG, Heparin, and DMSO control were added to the overlay medium for an additional incubation time before analysis of viral plaque size by immune fluorescence microscopy at 6 days post-infection as described in Methods. Representative virus plaques/foci are shown after three independent experiments were performed.

Scale bar indicates 100 μm. (JPEG 341 KB) Additional file 4: Figure S4: Examination of CHLA and PUG treatment on MV-EGFP cell-to-cell spread. CHO-SLAM cells were inoculated and infected with MV-EGFP for 1.5 h, washed with citrate buffer to remove excess surface bound virus, and covered with an overlay medium to prevent secondary infection. Initial virus plaques were allowed to form in the subsequent infections and CHLA,

PUG, Heparin, FIP, and DMSO control were added to the buy Entinostat overlay medium for an additional incubation time before analysis of viral plaque size by EGFP fluorescence microscopy at 48 h post-infection as described in Methods. Representative virus plaques/foci are shown after three independent experiments were performed. Scale bar indicates 100 μm. (JPEG 358 KB) Additional file 5: Figure S5: Examination of CHLA and PUG treatment else on RSV cell-to-cell spread. HEp-2 cells were inoculated and infected with RSV for 1.5 h, washed with citrate buffer to remove excess surface

bound virus, and covered with an overlay medium to prevent secondary infection. Initial virus plaques were allowed to form in the subsequent infections and CHLA, PUG, Heparin, and DMSO control were added to the overlay medium for an additional incubation time before analysis of viral plaque size by immune fluorescence microscopy at 48 h post-infection as described in Methods. Representative virus plaques/foci are shown after three independent experiments were performed. Scale bar indicates 100 μm. (JPEG 318 KB) References 1. Rothman AL: Immunity to dengue virus: a tale of original antigenic sin and tropical cytokine storms. Nat Rev Immunol 2011,11(8):532–543.PubMedCrossRef 2. Torresi J, Johnson D, Wedemeyer H: Progress in the development of preventive and therapeutic vaccines for hepatitis C virus. J Hepatol 2011,54(6):1273–1285.PubMedCrossRef 3. Sung H, Schleiss MR: Update on the current status of cytomegalovirus vaccines. Expert Rev Vaccines 2010,9(11):1303–1314.PubMedCrossRef 4. Wright M, Piedimonte G: Respiratory syncytial virus prevention and therapy: past, present, and future. Pediatr Pulmonol 2011,46(4):324–347.PubMedCrossRef 5. Munier CM, Andersen CR, Kelleher AD: HIV vaccines: progress to date. Drugs 2011,71(4):387–414.PubMed 6.