Can you provide a reference for this, as I thought the boosters were just the original vaccines, hence exactly the same antibodies. Yesterday I read that the c

Can you provide a reference for this, as I thought the boosters were just the original vaccines, hence exactly the same antibodies. Yesterday I read that the customised omicron specific boosters being developed by pfizer and moderna are not going ahead as the existing boosters are deemed good enough, though I can't find the link for that now.