id author title date pages extension mime words sentences flesch summary cache txt cord-004754-5596p4ma Duan, X. Effects of origin and state of differentiation and activation of monocytes/macrophages on their susceptibility to porcine reproductive and respiratory syndrome virus (PRRSV) 2014-04-06 .txt text/plain 4875 252 50 title: Effects of origin and state of differentiation and activation of monocytes/macrophages on their susceptibility to porcine reproductive and respiratory syndrome virus (PRRSV) To evaluate the effect of maturation of monocytes/macrophages on their susceptibility to PRRSV, freshly isolated AMf, PMf and BMo from ®ve donors were seeded in 24-well tissue culture plates at a concentration of 10 6 cells/ml/well and further incubated in RPMI medium plus 5% of foetal bovine serum at 37 C with 5% CO 2 . The virus titres and percentage of viral antigen positive cells in freshly isolated porcine AMf at 24 and 48 h after inoculation were respectively 1 to 2 log 10 TCID 50 and 5 to 10 times lower than those of one day cultivated ones, which is signi®cantly different (P'0.01). Porcine reproductive and respiratory syndrome virus infection of alveolar macrophages can be blocked by monoclonal antibodies against cell surface surface antigens ./cache/cord-004754-5596p4ma.txt ./txt/cord-004754-5596p4ma.txt