bottom line,

Injecting the cellular material of murdered unborn souls into your body to prevent an illness is a deadly sin. Whether it is actual cellular material or developed using cellular material it is a mortal sin.

Spiritually speaking only traditional latin catholics have this stand point as the pope in the apostate church has ok'd this grave cooperation with murder especially murder of the unborn. Personal opinions vary but when it comes to orthodoxy only latin rite traditional catholics are strickly forbidden from getting this as you will be damned for it spiritually speaking.

If injecting dead baby parts into your body to avoid catching a cold isnt the mark of the beast I dont know what is..