
Health & Medicine
Sickle-cell gene therapies offer hope — and challenges
Doctor Erica Esrick discusses existing treatments and an ongoing clinical trial for a gene therapy to treat sickle cell disease.
Doctor Erica Esrick discusses existing treatments and an ongoing clinical trial for a gene therapy to treat sickle cell disease.
Scientists are using genetic engineering and cloning to try to bring back extinct species or save endangered ones. Here’s how and why.
A cloned ferret named Elizabeth Ann brings genetic diversity to a species that nearly went extinct in the 1980s.
When viruses become more infectious or better able to survive the body’s immune system, they become a type of variant known as a strain.
Not all are equally impacted. Even among supposedly low risk groups, concerns intensify as the super-contagious delta variant sweeps across the globe.
Some of these tweaks to DNA, however, may have played a role in brain evolution.
One key mutation may have helped the virus behind COVID-19 better infect human cells.
Mutations in a gene that helps nerve cells work properly rob rabbits of their ability to hop. Instead, the animals use their front paws to move.
When scientists and Indigenous people work together, their efforts can benefit bears and people.
The price of not vaccinating nearly everyone across the world could be a longer pandemic and more troubling variants of the new coronavirus.