'Covidity' please . . .23 Jul 2022 12:07
" . . . recent research shows that previous infection with an older variant (such as Alpha, Beta or Delta) offers some protection against reinfection with BA.4 or BA.5, and that a prior Omicron infection is substantially more effective" . . (in conferring protection) . .
"The immunity you’re getting from these Omicron infections actually protects you from other Omicron sub-lineages to some extent,” says Sigal. However, “COVID is everywhere,” Sato warns. “It can easily evolve into a new variant.”
https://www.nature.com/articles/d41586-022-01950-2?
It'd be interesting to see how protection via vax compares with protection from previous infections.
I also wondered how immunity from Tcells as distinct from immunity from antibodies might be affecting these early findings . . . . .
For us LTH, some data on Covidity is eagerly awaited to see if it is likely to help at all.