Older adults 'should get second dose of COVID-19 vax at six weeks'

Infectious diseases experts say broadening coverage in Sydney is more important than maximising efficacy

Older adults in Sydney who have received one dose of the AstraZeneca vaccine have been urged to get their second dose anytime after six weeks amid the city’s escalating COVID-19 outbreak.

NSW Chief Health Officer Dr Kerry Chant.

Although the viral-vector vaccine is licensed for a dose interval of between four and eight weeks, the recommended interval between the