Some doctors say this is a shift from existing protocols on immunisations and could leave millions of patients without easy access to the vaccine.

Şimdiye kadar aşılanan Avustralyalı sayısı 100 bin civarında. Source: Getty Images (Photo by Behrouz Mehri / AFP / Pool/Anadolu Agency via Getty Images)
Some doctors say this is a shift from existing protocols on immunisations and could leave millions of patients without easy access to the vaccine.