Question

what was one of the earliest use cases for hela cells in medicine?
they were used to cure genetic disorders.
they were used in organ transplants.
they were used to produce vaccines.
they were used in animal cloning.

Explanation:

HeLa cells are the first immortal human cell line. In the early days, they were crucial in developing vaccines. For example, they were used in polio vaccine production. Genetic disorders curing, organ transplants, and animal cloning were not among their earliest uses.

Answer:

They were used to produce vaccines.