Novel Respiratory Syncytial Virus A Genotype, Germany, 2011–2012

To the Editor: Respiratory syncy-tial virus (RSV) is a major cause of severe respiratory disease in infants and elderly persons. RSV strains have been divided into 2 major antigenic groups (A and B), which are further divided into several genotypes. The main genetic and antigenic differences between genotypes are found within the 2 hy-pervariable regions of… (More)