Days after receiving the vaccine, the one-year old girl was diagnosed with acute myeloid leukemia.

In a study, researchers reported that her death was a fatal case of vaccine-associated measles encephalitis in an immunocompromised child. The study asserted that "the infection was confirmed by whole-genome RNA sequencing of the measles virus from brain tissue." The researchers claimed that the vaccine measles virus hypermutated to a fatal strain that invaded the brain and killed the child.

[Note: Viruses have yet to be proven to cause illness and to be contagious]

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Scientists at the world-renowned Stanford University School of Medicine have confirmed that a measles vaccine caused a previously healthy baby to develop a fatal case of leukemia.

The team of researchers, led by Dr. Christina Costales, revealed that the infant received dose 1 of Merck's MMR ProQuad vaccine.

The vaccine was administered during the baby girl's 1-year well-child visit.

Just a few days later, the child was diagnosed with acute myeloid leukemia.

Tragically, the baby's condition deteriorated so aggressively that she did not survive.