While it looks confusing on that CDC site as you scroll through you see an explanation.
The BA.1 (Bilateral vaccine booster) with human trials which provides significant antibody responses to BA.4 and BA.5 has been authorized.
Clinical trials for the vaccine booster primarily targeting BA.4/BA.5 is on going.
Their are two boosters that have shown to affect BA.4/BA.5
The original Covid vaccine has been approved and BA.1 (Bilateral vaccine booster).
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