Last week, America's honorary uncle Tom Hanks announced he and his wife Rita Wilson had tested positive for the coronavirus, demonstrating that not even beloved celebrities are immune from the crisis. The pair are currently isolated at Gold Coast University Hospital in Queensland, Australia, where they had been doing pre-production on Baz Luhrmann's Elvis Presley biopic.

They are fortunately in good spirits, with Hanks tweeting that their symptoms are relatively mild. However, hundreds of Australians are now worried about the actor for an entirely different reason.

'Life is like a tube of Vegemite. Don't try it all at once.' — Sally Sara (@sallyjsara) March 15, 2020

On Sunday, Hanks again expressed his gratitude for the Australian medical workers caring for him and Wilson during their isolation. "Thanks for the Helpers," he tweeted. "Let's take care of ourselves and each other."

Attached to the tweet was a photo of two pieces of toast smothered in Vegemite, with a bite taken out of one of them. It was a charming gesture of cross-cultural friendship from the American actor, a warm yet responsibly socially distant wave.

Yet it raised alarm among Australians, many reacting in horror to Hanks' innocently enthusiastic application of Vegemite.

WHERE WERE THESE HELPERS WHEN TOO MUCH VEGEMITE WAS BEING SPREAD ON THAT TOAST?????? https://t.co/cI1ks7EhYa — Kirsty Webeck 🏳️‍🌈 (@KirstyWebeck) March 15, 2020

Vegemite is an iconic Australian spread made from yeast extract left over from the brewing process, because of course beer is involved.

Sadly, it seems there was nobody around to guide Hanks through his Vegemite encounter. While his bread appears toasted, not a smidge of butter can be seen. More importantly, he appears to have smothered enough Vegemite on his toast to tar a highway.

For the uninitiated, commonly accepted Vegemite convention dictates only a small smear of the paste should be applied to buttered toast. Vegemite is an extremely salty paste, and applying more than that typically lends to a sub-optimal experience.

No wonder there was only one bite taken out of it.

Great to see our mate @tomhanks is being taken care of in isolation but we have to say bit of a thick spread there mate *cue the sound of thousands of Australians telling him he’s put waaaaaaay too much vegemite on that toast*😂 In all seriousness, get better soon Tom! #COVIDー19 https://t.co/IqXfeyuWMT — Australia in the US 🇦🇺🇺🇸 (@AusintheUS) March 16, 2020

cryinnnnggg why did tom put so much vegemite on his toast???????? — sageuk enthusiast | wen ning's bodyguard (@odultfiction) March 15, 2020

killing coronavirus with nuclear levels of vegemite might be our only hope https://t.co/AjCuOZilSx — Steve Smith (@stevesmithffx) March 15, 2020

60%? How about 95%!! — Geof Turner (@geof_turner) March 15, 2020

Tom Hanks is going to die from Vegemite isn’t he. https://t.co/s2DCvKoWuy — Neil McMahon (@NeilMcMahon) March 15, 2020

i cant help but to dry heave over the amount of vegemite tom hanks smothered on his toast — nia (@shaniacarIa) March 15, 2020

I noticed he stopped at one bite — Scott G (@scttfrnks) March 15, 2020

Cripes, we've given him coronavirus *and* Vegemite. https://t.co/5RdnsZVRb7 — Greg Jericho (@GrogsGamut) March 15, 2020

Small pleasures: reading every person in Australia tell Tom Hanks he used too much vegemite pic.twitter.com/HMTw2jjfgQ — winter jerk (@rajandelman) March 15, 2020

The only thing more pure than @tomhanks wholesome #coronavirus self-isolation updates is the hundreds (HUNDREDS) of Australians concerned that he’s used too much Vegemite on his toast and won’t get the proper experience. #COVIDー19 pic.twitter.com/CwL3hSWqgQ — Heather McNab (@heatherlmcnab) March 15, 2020

Of course, a small minority of people saw absolutely nothing wrong with Hanks' liberal use of the Australian breakfast pitch. Do not listen to them. They do not have your best interests at heart.

Everyone talking that Tom Hanks used too much Vegemite is clearly shook. And possibly; cowards. — Senator Briggs (@Briggs) March 15, 2020

UPDATE: March 16, 2020, 5:13 p.m. AEDT Hanks' son Colin has now weighed in on the matter as well.