Research Article
Characterization and Evaluation of the Pathogenicity of a Natural Gene-Deleted Transmissible Gastroenteritis Virus in China
Figure 4
Clinical signs of newborn piglets. (a) Clinical symptoms. The defecation of piglets was observed at 24 hours post-infection. (b) Clinical score. After infected with TGEV, the fecal scores of newborn piglets were categorized into 0, normal; 1, soft; 2, very soft and tends to be liquid; 3, liquid with some solid content; 4, watery diarrhea with no solid content. (c) Weight changes of piglets in each group after challenge. Black dotted line represents initial average weight of all piglets. (d) Survival curves for newborn piglets after challenged with TGEV. The survival percentages were presented as a Kaplan-Meier plot (n = 5 per group).
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