Patients at a clinic run by the Boone County Health Department in West Virginia were supposed to receive Moderna's COVID-19 vaccine on Wednesday.
But according to CNN, the 42 people were administered COVID-19 antibodies, instead.
Officials said it was an isolated incident but didn't explain exactly how such a mix-up occurred.
Fortunately, state and local health officials don't think they are at any risk of harm.
The West Virginia National Guard issued a statement soon after, vowing to avoid such incidents in the future.
We immediately reviewed and strengthened our protocols to enhance our distribution process to prevent this from happening again.
Maj.
Gen.
James Hoyer Adjutant General, West Virginia National Guard
