PLoS Pathogens
http://journals.plos.org/plospathogens/
[Accessed 7 April 2018]

Pearls
Polyvalent vaccines: High-maintenance heroes
Barbara Schlingmann, Katelyn R. Castiglia, Christopher C. Stobart, Martin L. Moore
| published 05 Apr 2018 PLOS Pathogens
https://doi.org/10.1371/journal.ppat.1006904