Johnson & Johnson was issued Emergency Use Authorization (EUA) from the FDA for a booster dose of the its COVID-19 vaccine for adults 18 and older at least two months following primary vaccination; and for eligible individuals who received a different authorized or approved COVID-19 vaccine. The Johnson & Johnson booster shot will be the same formulation and dosage as the primary shot.   The EUA is based on data provided by the company, including efficacy, safety and immunogenicity dat...