The baby's mother, an unidentified 36-year-old woman from New Mexico, stated that she received her first dose of Pfizer's COVID-19 vaccine on June 4, 2021. At the time, she was still breastfeeding her six-week-old infant son.

"On July 17, my baby passed away," she said in a report filed with the Vaccine Adverse Event Reporting System (VAERS).

Baby got sick after mother got vaccinated

According to the woman's testimony, her son had become "very sick with a high fever" on June 21. This was when he was treated with intravenous antibiotics for two weeks in a hospital for what doctors assumed to be a bacterial infection.

Tests conducted by the hospital "never found any specific bacteria," according to the VAERS report, with his case diagnosed as "culture-negative sepsis." It stated that, at the end of his two-week hospital stay, the infant tested positive for rhinovirus and was sent home.

But while at home, the baby developed further symptoms over the following week. These included "strange rashes," a swollen eyelid and vomiting. These caused his mother to bring him back to the hospital on July 15 where he was diagnosed with "atypical Kawasaki disease."

The Centers for Disease Control and Prevention (CDC) describes Kawasaki disease, also known as Kawasaki syndrome, as an "acute febrile illness of unknown cause that primarily affects children younger than 5 years of age." The disease causes swelling in the walls of medium-sized arteries throughout the body.