New modelling says 85% vax needed for herd immunity

A higher COVID-19 vaccination rate that includes children is needed against the Delta variant, shows research led by James Cook University

Australia needs to vaccinate 85% of its entire population, including children, to achieve herd immunity against the Delta COVID-19 variant, according to new modelling.

The nation's current plan of opening up when vaccination levels reach 80% of adults (or 65% of the total population) falls “far short” of herd immunity, say the authors from James Cook University in Queensland and Melbourne's Monash University. 

Their modelling shows the current mixed vaccine program -