Fig. 6

a The peripheral blood T helper lymphocytes population classification in different groups. b Effects of LHQW and LHQK on Th0, Th1/Th2 and Treg/Th17 in peripheral blood of HCoV-229E-infected mice at D8 after viral challenge. Data are presented as Mean ± SD (n = 8, in each group). ⁺P ≤ 0.05, ⁺⁺P ≤ 0.01 vs normal group. *P ≤ 0.05, **P ≤ 0.01 vs model group