Rob Stein

Researchers hope these "embryoids" could provide crucial new insights into how to treat infertility and prevent miscarriages, birth defects and many diseases. But they stir ethical concerns.

A Moscow scientist claims he has a safe way of editing genes in human embryos — a method that could protect resulting babies from being infected with HIV. Approval of the experiment seems unlikely.

A congressional committee has upheld a prohibition against the Food and Drug Administration considering using gene-edited embryos to establish pregnancies.

Analysis of DNA from more than 400,000 people in the U.K. suggests a genetic modification that protects against HIV may actually increase the overall risk of premature death.

The modified fungus produces spider toxin that rapidly kills mosquitoes, raising hopes for a new weapon to fight a disease that sickens millions. But not everyone is convinced.

The Food and Drug Administration approved a new gene therapy for a rare but devastating genetic disorder. The drugmaker says the cost is worth it because it's a one-time treatment that saves lives.

Superbugs are bacteria that can beat modern medicine's most powerful drugs. So doctors are racing to find new ways to fight back.

Treatment with genetically altered bacteriophages — viruses that attack bacteria — may have halted a patient's near-fatal infection, hinting at new ways to fight antibiotic-resistant bacteria.

Federal health officials released the latest national measles count Monday. Measles has been reported in 22 states.

This could be a crucial year for the powerful gene-editing technique CRISPR as researchers start testing it in patients to treat diseases such as cancer, blindness and sickle cell disease.

The powerful gene-editing technique is moving out of the lab and into the clinic. Trials will use CRISPR to try to treat a variety of diseases, ranging from cancer and blindness to blood disorders.

An international group of 18 prominent scientists and bioethicists is calling for countries around the world to impose a moratorium on the creation of babies whose genes have been altered in the lab.

Researchers think genetically engineered versions of microbes that can live in humans could help treat some rare genetic disorders and perhaps help with Type 1 diabetes, cirrhosis and cancer.

A study of more than 600,000 Danish children finds no evidence of any link between autism and the vaccine that protects against mumps, measles and rubella.

What are some of the leading arguments against this experiment? What happens to other species in the food chain? Isn't developing a vaccine a better way to go?

The insects were created, using CRISPR, to carry a powerful "gene drive." The mosquitoes could provide a potent weapon against malaria, but they raise fears about unpredictable environmental effects.

WHO acted in reaction to a Chinese scientist's announcement in 2018 that he had created the world's first gene-edited babies, a step that highlighted the need for uniform gene-editing guidelines.

Despite outrage over gene editing in China that affected the birth of twins, research is underway in the U.S. to assess the safety and effectiveness of CRISPR tools to edit genes in human embryos.

Despite outrage over gene editing in China that affected the birth of twins, research is underway in the U.S. to assess the safety and effectiveness of CRISPR tools to edit genes in human embryos.

A Chinese scientist's claim that he'd created the first gene-edited babies rocked the world this year, raising questions about the ethics of powerful new gene-editing techniques.