Will a Devastating Coronavirus Omicron BF.7 & XBB Wave Return?
About BF.7, What else do we know?
As the top part of the SARS-CoV-2 tree sprouts branching and sub-branches, so do infections when they change, creating lineages and sub-lineages. The Omicron sub-lineage BA.5 and the BF.7 are identical. The latter is also known as BA.5.2.1.7. The BF.7 Omicron sub-variant has a 4.4-fold higher neutralization resistance than the authentic D614G Omicron variant, according to a study that appeared in the journal “Cell Host and Microbes” earlier in the month. In a lab environment, immune cells from vaccinated virus-affected people were less likely to eliminate BF.7 than the initial Wuhan virus that spread worldwide in 2020. However, the study found that another coronavirus Omicron sub-variant named BQ.1 had a significantly 10-fold higher neutralization susceptibility than BF.7, which was not the most resilient sub-variant. A variation is more likely to propagate in a group and supplant competing variants if it has a higher neutralization resistance.
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