Figure 1.

TGEV infection decreases arginine uptake. A HPLC analysis of a purified sample of arginine used as a standard. B IPEC-J2 cells were incubated with TGEV (MOI = 3), and culture supernatants were collected for arginine analysis at the indicated time points. Results are expressed as means ± SDs of three independent experiments. Differences were considered significant at *0.01 < p < 0.05, **p < 0.01.