New measles cases in Queensland show ‘herd immunity’ is more important than ever

Thu, 25 Sep 2025 03:38:06 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://theconversation.com/new-measles-cases-in-queensland-show-herd-immunity-is-more-important-than-ever-265850>

"The World Health Organization (WHO) declared Australia free of measles in
2014.

Historically, high childhood measles vaccination coverage and thorough
follow-up of suspected cases have helped prevent outbreaks.

But in the last six weeks, a growing outbreak in Queensland – along with cases
and clusters in Western Australia, Victoria and New South Wales – shows measles
can still spread here.

In 2021, no cases were recorded in Australia. But case notifications have
continued to climb since, with 57 reported in 2024 and 122 so far in 2025 – and
it’s only September. Some of these cases are in children too young to be
vaccinated, but most are in adults.

So, what’s going on? Is Australia at risk of losing its herd immunity with
lower vaccination rates? Let’s unpack the evidence."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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