Bioethics.net

Early experiments are beginning to show how genome-editing technologies such as CRISPR might one day fix disease-causing mutations before embryos are implanted. But refining the techniques and getting regulatory approval will take years. PGD has already helped thousands of couples. And whereas the expansion of PGD around the world has generally been slow, in China, it is starting to explode.

One. That is the total number of locally transmitted Zika cases confirmed in the continental United States this year, as of mid-August. That single case, recorded on 26 July in Hidalgo County in Texas, which borders Mexico, contrasts with hundreds of cases of local transmission last year.

President Donald Trump said Thursday that he plans to declare the opioid crisis a national emergency. Clearly, the massive increase in drug deaths warrant a serious government response. But what does a national emergency actually mean?

Computer algorithms trained on the images of thousands of preserved plants have learned to automatically identify species that have been pressed, dried and mounted on herbarium sheets, researchers report.