The BBC News website is launching a weekly column where leading clinicians and experts outline their views on health topics. Read a selection of your comments here.

British scientists are working on a new way to combat the superbug MRSA.

Adding a special "spiky" coating to surfaces can kill bacteria and eliminate viruses, research suggests.

The spread of a fungus that threatened to destroy primitive cave paintings is stopped.

A strain of bacteria that can manufacture tiny crystals of silver has been reported by Swedish scientists.