International Journal of Infectious Diseases
January 2018 Volume 66, p1-156
http://www.ijidonline.com/issue/S1201-9712(17)X0013-1

Perspective
Emergent lineages of mumps virus suggest the need for a polyvalent vaccine
Meghan May, Courtney A. Rieder, Rebecca J. Rowe
p1–4
Published online: October 5, 201