Hints and tips:
...The titers were produced against the Beta, Delta and Kappa variants, as well as Eta, which was first detected in Nigeria, and the A.23.1 and A.VOI.V2 variants first seen in Uganda and Angola respectively...
...The next “variants of interest” category — suspected of being more transmissible or vaccine resistant — includes Eta, Iota, Kappa and Lambda....
International Edition