Low dose of AstraZeneca may be key to success
Low dose of AstraZeneca may be key to success We’re sorry, this service is currently unavailable. Please try again later. Dismiss January 16, 2021 — 12.04am Normal text size Credit: Your writer mentions the mystery of the 90 per cent efficacy rate for those people who accidently received a low dose in the AstraZeneca trial, followed by a standard dose ("Gambling on the right vaccine", January 15). No matter why it happens, why not adopt this as standard immunisation practice rather than implement a procedure with only 65 per cent efficacy? Diana Wyndham, North Sydney Reluctance to ado...