#viruses

#viruses

For decades, we had one type of vaccine technology. It takes a very long time and requires us to isolate the virus from someone who's sick and grow it in the lab.

Evolution and experience offer a variety of paths to follow, branch-points in the flowcharts that handle such input. Sometimes these signals come from conspecifics who have useful information to share, whose lives you'll defend according to the rules of kin selection.