This is useful stuff I've found for older kids, but too old for our 3-year-old!

(I'm not categorising much beyond this, as I have no time! And probably almost no-one is reading this...)

Virus explainers

quite a few "explain the virus to my kids" options:

• https://www.livescience.com/coronavirus-kids-guide.html
• CovidBook

Podcasts

• Imagine This ABC (Aus) kids show for 4 and up