Everybody uses the Cooliris Firefox plugin, right? Because that thing is awesome. Nothing is better for exploring Flickr, and I can't even stand to look through GIS results without using it. The iPhone app's decent, too. (edit: Right after I posted this, I downloaded an update to Cooliris, so far it seems even better then ever!)
It's funny, pandemic is actually one of my biggest paranoid fears but I have enough to stress about atm, I guess. I found some fascinating pictures from Mexico on Flickr that I had to share, though. I didn't want to hotlink so I uploaded them elsewhere, but you can find the original sources/photographers and a few other good ones under my Flickr favorites:
Sign says (something like): Notice: By instruction of the Secretary of Education classes are suspended until the 6th of May.
"Avoid the flu. Go to your house to watch movies with your family for just $10"...ingenuity blossoms everywhere.