FIGURE 4.

Aloe polysaccharides reduces the clinical symptoms of infected mice. All 60 mice in groups I (A), II (B), and III (C) were infected intranasally with the 10⁵ TCID₅₀ of virus. Then the mice in groups I and II were orally administrated with 20 and 40 mg of APS per day, respectively, and group III were orally administrated isometric PBS. Another 20 virus-free mice in groups IV (D) served as the normal control. The typical clinical symptoms were recorded at 7 dpi (A–D), and the body weight loss (E) of animals were recorded every day up to 14 dpi.