The infant was born via SVD at 40 weeks gestation with no complications. She was given HepB vaccine (IM, right thigh) prior to discharge. On 10/23, she received the RSV monoclonal antibody (IM in left thigh). No report of immediate adverse reaction from mother. That evening, the infant was placed supine in an unsafe sleep environment (bedsharing with two adults and soft bedding) at approximately 11:30 pm and found at approximately 3:30 am not breathing and asystolic upon arrival of EMS. Pronounced deceased at 4:45 am on 10/24/2024 Reporting for temporal association, not causation