A new kind of microscope is giving scientists a way to watch life inside cells with a clarity that feels almost unfair.

They are the virus's lockpicks, the tools that let it slip into our cells and spread from one host to another. The flu virus attacks much like a thief looking for unlocked doors. Its HA and NA ...

How flu viruses enter cells has been directly observed thanks to a new microscopy technique with the potential to revolutionize research on membrane biology, virus–host interactions and drug discovery ...