Australia may face a setback with it its COVID-19 vaccine rollout plan with experts suggesting one jab may not be effective enough to achieve herd immunity.
The Australia and New Zealand Society for Immunology says, based on current evidence, the AstraZeneca vaccine shouldn't be relied on for controlling the virus in Australia.
Phase three clinical trials show the AstraZeneca is around 62 per cent effective in preventing COVID-19."
We don't believe that is high enough to confer herd immunity in the population," Infectious disease doctor Associate Professor Michelle Ananda-Rajah told Today.
"The issue with the AstraZeneca vaccine is that we are relying heavily on this vaccine to immunise the population so the vast majority of Australian population will be getting the AstraZeneca vaccine.
"Herd immunity is really important ... it stops the virus from circulating and helps us return as normal a life as possible and the issue here is that we think that that target number should be around 70 or 80 per cent at least."
The Pfizer jab - currently being rolled out in the United Sates and the UK - is considered more than 90 per cent effective and thus more likely to achieve a her immunity result.
https://news.google.com/__i/rss/rd/articles/CBMiugFodHRwczovL3d3dy45bmV3cy5jb20uYXUvbmF0aW9uYWwvYXVzdHJhbGlhLWJyZWFraW5nLW5ld3MtbGl2ZS1jb3JvbmF2aXJ1cy11cGRhdGVzLWhlYWRsaW5lcy1qYW51YXJ5LTEzLTIwMjEtdmFjY2luZS1jb25jZXJuLXRydW1wLWRlbm91bmNlcy12aW9sZW5jZS9kYzdjY2E1Yi0xNDU4LTQwNGMtYTQ1Ny00MTExYTg1MTJkMjDSAUdodHRwczovL2FtcC45bmV3cy5jb20uYXUvbGl2ZS1ibG9nL2RjN2NjYTViLTE0NTgtNDA0Yy1hNDU3LTQxMTFhODUxMmQyMA?oc=5
2021-01-12 19:45:00Z
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