Here's the FDA page showing all the testing Emergency Use Authorizations (EUAs):
https://www.fda.gov/medical-devices/emergency-situations-medical-devices/emergency-use-authorizations#covid19ivd
Out of that list, here are the traded stocks: CODX, CEMI, LMNX, BDX, ABT, PKI, GNMK, DGX, QDEL, HOLX, QGEN.
A little overlap with McDee's list, but perhaps some new names, too.
A lot of money being thrown their way while their sensitivity, accuracy, and timeliness are sorted out.