Rapid antigenic evolution in an influenza virus increases the likelihood of emergence of novel strains. Under the circumstances, if vaccines are not yet available, treatment plays a crucial role in control of the disease. In this meta-analysis, the authors have compared the efficacy and safety of Lianhuaqingwen capsule (LHQW-C) and oseltamivir in treating influenza A virus infection. By Pan Zhao MD et al, published in Alternative Therapies, Vol. 20, No. 2.