Fig. 2From: Methionine enkephalin(MENK) upregulated memory T cells in anti-influenza responseThe influence of MENK on the mice infected with influenza virus. A the survival rate and B weight change. Each group of 8 mice were infected with 2 LD50 of influenza A virus (PR8), except for mice in the NS group. All the mice were monitored daily for 10 days. Data were analyzed using the log-rank(Mantel-Cox) test. ★p < 0.05 versus the PR8 groupBack to article page