Menu

Primary Menu

Skip to content
  • Home
  • About Me
  • glossary
Show Header Sidebar Content

Virology Down Under

Facts, data, info, expert opinion and a reasonable, occasionally grumpy, voice on viruses: what they are, how they tick and the illnesses they may cause.

Latest posts...

don't forget to signup, login, follow and Like them!

A/H5N1 strain of avian influenza A virus (“bird flu”) confirmed in two dead birds in Australia

A/H5N1 strain of avian influenza A virus (“bird flu”) confirmed in two dead birds in Australia

Australia’s Minister for Agriculture has notified Australians that overnight laboratory testing confirmed the presence of A/H5N1 in one sick bird and an H5 virus in another, both found in the same region of Read More ...

Well, the day had to come. “Bird flu” flies into Australia on a feathered wing.

Well, the day had to come. “Bird flu” flies into Australia on a feathered wing.

Lock up the chooks! According to Australia’s national broadcaster, Western Australia (WA) is the site for the first importation to the Australian mainland – via a bird – of an Read More ...

Looks like Flu has reset in Australia

Looks like Flu has reset in Australia

The COVID-19 pandemic introduced a brand-new respiratory virus, SARS-CoV-2. With that introduction, as suspected, lots of things were thrown into disarray. One of those was the circulation of other respiratory Read More ...

There are a lot of people sick….again…in winter….

There are a lot of people sick….again…in winter….

Yep. It’s a time of year in many parts of the world when viruses that love a warm human airway, kick it up a notch – influenza, respiratory syncytial virus Read More ...

An early & big flu rise in Australia

Posted onJune 7, 2022June 8, 2022

Influenza (flu) cases have been rising rapidly in Australia this year. Some see this as a result of waning immunity during our border closures. Some see this as the harbinger Read More …

CategoriesInfluenza

NEXTSTRAIN Clades, 02MAY2022

BA.2.12.1 is on the rise in New York…

Posted onMay 2, 2022May 2, 2022

A recently named sub-strain represents the latest twist in the ongoing evolution of SARS-CoV-2. It’s currently active in the United States and looks to be very capable of spreading, outpacing Read More …

CategoriesCOVID-19, SARS-CoV-2, Variants

Unexplained hepatitis: severe liver inflammation among young children

Posted onApril 25, 2022May 11, 20222 Comments

Uncharacterised and so far rare cases of unexplained severe liver inflammation among young children. These cases of unexplained hepatitis have been appearing in elevated numbers worldwide since November 2021. The Read More …

CategoriesAdenovirus, Emerging disease, SARS-CoV-2, Uncategorized

Lockdowns had a role: they saved lives

Posted onApril 18, 2022April 18, 2022

There are threats and lists and all manner of abuse aimed at those who promoted or supported measures that saved lives during the COVID-19 pandemic. I just want to make Read More …

CategoriesCoronavirus, COVID-19, Pandemic, TransmissionTagsLockdown

Super-cold or a silly headline?

Posted onApril 15, 2022April 17, 2022

In Australia, there seem to be a bunch of articles talking about “super-colds”. Please stop calling them this. They are just colds caused by one or more of the many Read More …

CategoriesCoughs & colds

Arrr a piRATe

Arrrrr on the rise (Rhinovirus, RSV and RATs)

Posted onMarch 19, 2022March 26, 2022

Anecdotally there are a lot of acute respiratory virus infections ripping through the community where I live. Particularly noticeable in schools but also workplaces. Yes, there is SARS-CoV-2 among these Read More …

CategoriesRhinovirus, SARS-CoV-2, Transmission

Thank goodness we did all the work

Posted onJanuary 29, 2022July 16, 20226 Comments

Thank goodness we didn’t hold off on opening up to see what Omicron was capable of. We had to have Christmas. And there were national cabinet agreements. Anyway, how could Read More …

CategoriesAerosols, Communication, Coronavirus, COVID-19, Editorial, Enterovirus, Influenza, Parechovirus, Rhinovirus, SARS-CoV-2, Transmission

Living next door to Alice

Posted onJanuary 3, 2022February 7, 20262 Comments

I mean, who wants to say “living with COVID” amirite? The connotation is that it’s just a necessary thing we have to do. But really, at some point, it kind Read More …

CategoriesCoronavirus, COVID-19, SARS-CoV-2, Transmission

pexels-photo-5878501.jpeg

Ireland and the vaccinated hospitalised-it ain’t what it looks like

Posted onNovember 6, 2021November 7, 20213 Comments

The media have again become fixated on the higher number of COVID-19 fully-vaccinated people in Irish hospitals and ICUs – but when you apply a little mathematics, it’s clear that Read More …

CategoriesCOVID-19, Debunking, Vaccines & vaccination

WHO to new PCR users: read the damned manual!

Posted onJanuary 23, 2021January 23, 20218 Comments

The World Health Organization (WHO) recently published (14th Dec 2020, then updated 20th Jan 2021) a piece of advice for laboratories testing for SARS-CoV-2 using PCR. The advice boils down: Read More …

CategoriesCOVID-19, PCR

Putting PCR into real-time

Posted onJanuary 2, 2021January 26, 20266 Comments

Three letters have been very busy in 2020: P. C. and R. The Polymerase Chain Reaction. It’s a tiny, thermally controlled, cyclical, enzyme-driven, chemical reaction that lets scientists identify the Read More …

CategoriesLaboratory methods, PCRTagsMicrobiology, Pathology laboratory

The mechanics of the polymerase chain reaction (PCR)…a primer

Posted onDecember 28, 2020December 28, 2020

The polymerase chain reaction (PCR) is a technique for copying a piece of DNA a billion-fold. As the name suggests, the process creates a chain of many pieces, in this Read More …

CategoriesDNA, Laboratory methods, PCRTagsdiagnostics, DNA Down Under (DDU)

The Swiss cheese infographic that went viral

Posted onDecember 26, 2020August 11, 202533 Comments

A visual representation of how to prevent transmission of SARS-CoV-2 struck a chord with many in 2020. I won’t rehash all that has already been written about the Swiss cheese Read More …

CategoriesCommunication, COVID-19, Rhinovirus, SARS-CoV-2

Happy Festive Season to all who read this….

Posted onDecember 24, 2020December 24, 20202 Comments

..whatever your shape, colour, gender, sex, size, beliefs, weight or disposition, I wish you a safe and happy festive season. May 2021 be a better year for those of us Read More …

CategoriesEditorial

The “false-positive PCR” problem is not a problem

Posted onNovember 22, 2020August 5, 202458 Comments

If you haven’t seen all the chatter that states PCRs using more than thirty-something (someone even suggested 25 to me!) cycles will suffer from false positives, and so are useless, Read More …

CategoriesCoronavirus, COVID-19, PCR, SARS-CoV-2

Post navigation

← Older posts
Newer posts →

More of VDU

  • Pinterest
  • Google
  • Facebook
  • Mastodon

Recent Posts

  • There are a lot of people sick….again…in winter…. June 28, 2026
  • A/H5N1 strain of avian influenza A virus (“bird flu”) confirmed in two dead birds in Australia June 20, 2026
  • Well, the day had to come. “Bird flu” flies into Australia on a feathered wing. June 19, 2026
  • Looks like Flu has reset in Australia June 5, 2026
  • The ridiculously oversimplified claim that PCR can “detect one single molecule” May 26, 2026
  • Just 0.7% of of universally screened asymptomatic patients produced unrepeatable PCR tests May 2, 2026
  • A little virus that still can: poliovirus and poliomyelitis May 1, 2026
  • Age and COVID-19: What’s with all the young kids? April 14, 2026
  • Asymptomatic, acute and persistent COVID-19 symptom changes over the course of three infections March 5, 2026
  • How are asymptomatic COVID-19 cases tracking? March 2, 2026
  • Another way to look at flu season size February 28, 2026
  • Whooping cough in 2024 was huge in Australia, but is declining in 2025 and 2026 February 19, 2026
  • Pathology lab PCR is not research lab PCR January 27, 2026
  • Is there more flu in Australia and New Zealand than normal for Christmas? Hell Yes! December 27, 2025
  • Catch them all? There are three different influenza viruses and they can co-circulate each season August 22, 2025

All opinions are my own and do not represent medical advice or the views of any institution.

All graphics made by me are free-to-use. Please just cite the particular page, blog and me. A heads-up would be nice, but that can happen later.

Tags

anti-vaccination asymptomatic Australia avian influenza China Democratic Republic of the Congo DRC Ebola virus Ebola virus disease epidemic epidemiology EVD Flu flunami flu season genotype H1N1 H3N2 H7N9 HTLV HTLV-1c influenza influenza virus MERS MERS-CoV molecular epidemiology outbreak PCR pneumonia Queensland reporting respiratory virus rhinovirus RT-PCR SciComm science communication seasonal influenza social media SoMe summer transmission United States of America vaccine Wuhan Zaire ebolavirus

Regular reads…

  • FluTrackers-everything infectious, before it happens
  • Mike Coston’s Avian Flu Diary
  • ProMED mail
  • WHO Disease Outbreak News
  • HealthMap
  • STAT News
  • CIDRAP-timely infectious disease reporting
  • Kai Kupferschmidt
  • Martin Enserink

Recent Posts

  • There are a lot of people sick….again…in winter….
  • A/H5N1 strain of avian influenza A virus (“bird flu”) confirmed in two dead birds in Australia
  • Well, the day had to come. “Bird flu” flies into Australia on a feathered wing.
  • Looks like Flu has reset in Australia
  • The ridiculously oversimplified claim that PCR can “detect one single molecule”

All opinions are my own and do not represent medical advice or the views of any institution.

All graphics made by me are free-to-use. Please just cite the particular page, blog and me. A heads-up would be nice too but that can happen later.

Bluesky: @mackayim.bsky.social

Threads: @mackayim.2024

Mastodon: @mackayim2022@mastodon.social

 

Copyright © 2026 Virology Down Under. All Rights Reserved.
• The following link is used to verify that I 'own' the domain
for use with Mastodon
Theme: Clean Box Pro
Scroll Up
  • Home
  • About Me
  • glossary

Virology Down Under

Facts, data, info, expert opinion and a reasonable, occasionally grumpy, voice on viruses: what they are, how they tick and the illnesses they may cause.

Skip to content ↓