Università della Svizzera italiana

Particle conformation regulates antibody access to a conserved GII.4 norovirus blockade epitope

Lindesmith, Lisa C. ; Donaldson, Eric F. ; Beltramello, Martina ; Pintus, Stefania ; Corti, Davide ; Swanstrom, Jesica ; Debbink, Kari ; Jones, Taylor A. ; Lanzavecchia, Antonio ; Baric, Ralph S.

In: Journal of virology, 2014, vol. 88, no. 16, p. 8826-8842

GII.4 noroviruses (NoVs) are the primary cause of epidemic viral acute gastroenteritis. One primary obstacle to successful NoV vaccination is the extensive degree of antigenic diversity among strains. The major capsid protein of GII.4 strains is evolving rapidly, resulting in the emergence of new strains with altered blockade epitopes. In addition to characterizing these evolving blockade...

Università della Svizzera italiana

Within-host evolution results in antigenically distinct GII.4 noroviruses

Debbink, Kari ; Lindesmith, Lisa C. ; Ferris, Martin T. ; Swanstrom, Jesica ; Beltramello, Martina ; Corti, Davide ; Lanzavecchia, Antonio ; Baric, Ralph S.

In: Journal of virology, 2014, vol. 88, no. 13, p. 7244–7255

Genogroup II, genotype 4 (GII.4) noroviruses are known to rapidly evolve, with the emergence of a new primary strain every 2 to 4 years as herd immunity to the previously circulating strain is overcome. Because viral genetic diversity is higher in chronic than in acute infection, chronically infected immunocompromised people have been hypothesized to be a potential source for new epidemic...