Take the greetings. Handshakes, and skin-to-skin contact generally, are an easy means for the disease to spread. On TikTok, the concept of greeting people without touching them has become a meme: the wave, the elbow, the “Thai wai” (hands clasped, head bowed). You may by now have encountered the “Wuhan shake”: footage went viral in which several men in the Chinese city forgo handshakes and touch their feet together instead. This goes for handwashing and face-touching too: a song put out by Vietnamese officials to encourage people to wash their hands has spawned a TikTok dance challenge; meme armadas have been repurposed (example: Sex Education’s Eric’s immortal line “wash your hands, you dirty pig”).