suzie - I'm pretty sure too that everyone knows how to take care but I totally agree with Jaxjacky's two comments. It isn't just a general "take care" comment to everyone that's needed.
Being vaccinated simply means carrying on as before but with a greatly lessened fear of the consequences of catching Covid. However, those people could still catch it and pass it onto others who've not been vaccinated. They need reminding so yes to a banner stating this.
What decade were your grandparents born?
Desperately sad story of the assisted suicide of a grieving mother


