Many countries are currently experiencing their ... about genetic changes that allow pathogens to evade our immune system and cause disease despite us being vaccinated against them.

Simply put, the DRG is a pricing system that charges a fixed rate for certain medical procedures. Say you are a patient, the DRG is a way for hospitals to get paid a fixed amount for treating you ...

One of the Azerbaijani sources familiar with Azerbaijan's investigation into the crash told Reuters that preliminary results showed the plane was struck by a Russian Pantsir-S air defence system.