Rotavirus immunity wanes in older children

Cases in NSW more than doubled between 2016 and 2017
Jocelyn Wright
Vaccine vials

New Australian evidence suggests the protection offered by the monovalent rotavirus vaccine may wane over time and new strains are emerging.

A threefold increase in rotavirus notifications in 2017 prompted Australian epidemiologists to investigate the efficacy of the vaccine (Rotarix) and to characterise circulating strains.