Tannins extract from Galla Chinensis can protect mice from infection by Enterotoxigenic Escherichia coli O101

Table 1 Survival of mice after challenge with the LD₅₀ of E. coli O101 on day 7

Group	Total number ^a	Survivor number	Survival rate(%)
Normal	16	16	100
Negative control	16	7	43.75
Loperamide	16	10	62.50
GOS 5%	16	9	56.25
GOS 10%	16	11	68.75
GOS 15%	16	12	75.00

^a Total number of mice was excluded the 6 killed mice on day 4. Normal, the uninfected-untreated control. Negative control, the infected-untreated control. Loperamide, the infected group with Loperamide-treatment (10 mg/kg). The 5, 10 and 15% GOS were the infected groups treated with corresponding concentration of GOS at a dose of 10 mL/kg, respectively

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