Influenza Vaccine in Elderly: Nutritional Status-Dependent Immunogenicity

influenza vaccine

The immune response to influenza vaccine is attenuated in elderly persons, though they are at greatest risk for morbidity and mortality by influenza virus infection. Experimental studies demonstrate that co-administration of L-cystine and L-theanine enhanced antigen-specific production of immunoglobulin in aged mice infected with influenza virus. This study thus investigated the effect of L-cystine and L-theanine on antibody induction by influenza vaccines in elderly persons. By Koichi Miyagawa, Yoshimitsu Hayashi, Shigekazu Kurihara and Akiko Maeda, published in Geriatrics Gerentology Int’l., Japan Geriatrics Society, Vol. 8.

Shorter Flu Duration with Lianhuaqingwen

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.