Human fetal tissue research has helped in the development of some vaccines.

Despite persistent claims to the contrary, none of the three authorized or approved COVID-19 vaccines contains fetal tissue. In an early phase of development, two of the coronavirus shots — the mRNA ...

The Trump administration is ending the use of abortion-derived fetal tissue in research funded by the National Institutes of ...

Vaccines and aborted fetal tissue are linked in some cases. That's because certain vaccines, such as a type of rabies vaccine, are made by cultivating the virus in fetal cells. The Janssen COVID-19 ...

Pregnancy creates a lifelong biological link as cells pass between mother and child and remain in the body for decades.

During pregnancy, maternal and fetal cells migrate back and forth across the placenta, with fetal cells entering the mother's bloodstream and tissues. They can settle in maternal organs such as the ...

The new Johnson & Johnson COVID-19 vaccine will provide a big boost to the effort to protect as many Americans as possible as soon as possible. But now there may be an obstacle. Some church leaders ...