Enhanced expression of secretable influenza virus neuraminidase in suspension mammalian cells by influenza virus nonstructural protein 1

An improved in vitro and in vivo Sindbis virus expression system through host and virus engineering

Neuraminidase amino acids 149 and 347 determine the infectivity and oseltamivir sensitivity of pandemic influenza A/H1N1 (2009) and avian influenza A/H5N1