The authorities are making mass arrests, seizing assets and hunting down doctors who treated protesters. Some Iranians keep showing defiance anyway. By Erika SolomonLeily Nikounazar and Sanam Mahoozi ...

Bacteria are organisms that consist of a single cell without a nucleus and with distinct structural, physiological and evolutionary characteristics. Bacteria form one of the three domains of life; the ...

After two years of mass azithromycin distribution to preschool age children in rural Niger, in this study, authors present evidence that selection of antibiotic resistance genes was not spread from ...