News & Perspective

Some products have shown promise, but efficacy varies across animal populations and more study is needed.

Though the technology isn't likely within reach of do-it-yourselfers, it could already be in use by rogue governments, experts say.

New data raise the specter of completely resistant Neisseria gonorrhoeae strains, and options are few.

A second case of vaccine-derived polio is reported in Raqqa, Syria, while a Pakistani toddler has a wild poliovirus infection.