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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,746
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Yep, this is a thing that's known.
As Bryan said, the virus guys say "I'm pretty sure this year we're getting variation XYZ!" so the industry whips up a batch of "Flu vaccine, XYZ variant." If that year has or also has variant PDQ, then a bunch of folks are screwed despite getting the vaccine because it won't help with the version they got.
Same as you keep hearing about the different variants of CV19.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa  SOLD 2004 - gone but not forgotten
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