Blinding
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Double blinding in this trial meant that subjects, parent(s)/guardian(s), all investigators, and the study team responsible for the endpoint evaluation were unaware of the vaccine (BK-SE36/CpG or Verorab®) given to the participant. The only staff aware of the vaccine assignment were those responsible for the storage, preparation, and administration of the vaccines and they had no other role in the study. The randomisation list was password protected and was not disclosed to the team before the database lock. Vaccines were stored at 5 ± 3°C under light protected conditions, in a secured area with access limited to the site pharmacy staff. Vaccines were prepared at the clinical trial site pharmacy by the unblinded pharmacy team under the responsibility of an unblinded pharmacist. Contents of syringes were masked to keep the investigator, participants, or participant parents/guardians blinded.