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variant; but this one also has other mutations located close to the receptor binding site of the spike protein — the spot where the spike protein binds to ACE2 on human cells. nimbus 18 The "Good Morning Brittain" co-host stood by his tweet while responding to another Twitter user who wrote: "This is honest and you still found a way to keep it respectful. nimbus 18 nbsp;In the continued fight against COVID-19, the Biden administration has also listed large community outreach initiatives to address vaccine hesitancy as a top priority. nimbus 18 Smith tried again by noting that President-elect Joe Biden's nominee to be treasury secretary, Janet Yellen, had stated that China is guilty of "horrendous human rights abuses. nimbus 18