CDC uses the term Anti-HBs. https://www.cdc.gov/hepatitis/statistics/surveillanceguidance/docs/viral-hepatitis-surveillance-table-3-1_508.pdf AMBOSS does as well. https://next.amboss.com/us/article/OS0I-2#Ybddec37c03a0140784cb786b78775ffa I see your point, but I wouldn’t say that using Anti-HBs is incorrect. But let’s see if others disagree.