The Latest from 7NEWS with Michael Usher: Professor Mary-Louise McLaws on why Australians may need a third vaccine dose and, depending on which brand they receive, could still be barred from entering certain countries; live to Florida as Hurricane Elsa pummels the coastline and Kyle Vander-Kuyp's new role with the Australian Olympic Team.

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The Latest from 7NEWS with Angela Cox: Your complete guide to Australia’s vaccine supply, Katherine, the Duchess of Cambridge in isolation following a COVID-19 scare, and how much Scott Morrison’s new pandemic exit will cost Australia.

Get the latest from 7NEWS across the day at 7NEWS.com.au and 7plus.com.au/news; and tune in for 7NEWS nightly at 6.

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The Latest from 7NEWS with Michael Usher: a mass vaccination superhub and aged care home hit by the Sydney COVID-19 outbreak; vaccine wars escalate as thousands of young people take up the Prime Minister's invitation to get the AstraZeneca jab; how the AFL's anti-COVID hub are saving the season; and live to London as Prince's William and Harry unveil a statue of their mother, Diana.

Get the latest from 7NEWS across the day at 7NEWS.com.au and 7plus.com.au/news; and tune in for 7NEWS nightly at 6.

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