Secretory IgA in Mucosa of Pharynx and Larynx Plays an Important Role against Influenza A Virus Infection in Kidney Yang Deficiency Syndrome Model

Figure 3

Survival rate and the viscera index of the lung, thymus, and spleen in different treatment group’s mice after infection with influenza A virus. Survival proportions of different treatment group’s mice after influenza A virus infection were measured for consecutive seven days, and survival analysis was used with the log-rank (Mantel–Cox) test method. Survival rate of the MI group had a significant change compared with the MD or NC group (, Figure 3(a)). The viscera index of the lung, thymus, and spleen were compared between varied groups on the 3^rd or 7^th day ( and , n = 5–9 in each group, Figures 3(b)–3(e)). NI: normal intubation group; ND: normal nasal dropping group; MI: model intubation group; MD: model nasal dropping group; NC: normal control group. (a) Survival propositions. (b) Viscera index of the lung on the 3^rd day (c) and on the 7^th day. (d) Viscera index of the thymus on the 7^th day. (e) Viscera index of the spleen on the 7^th day.

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