How to clean an iPhone to guard against Coronavirus? I've read several articles that cleaning an iPhone should only be done by a microfibre cloth to prevent damage to the device. But I can't see how that will actually clean the device and kill things like viruses. 

This might sound over the top, but we're all being told to wash our hands frequently and effectively and given how often we touch our phones it seems we should be cleaning them just as often. 

Is it safe to use alcohol wipes on an iPhone? Or what is the recommended practice?
I use non-alcohol wipes made by Seventh Generation to clean my family's iDevices, computer keyboards, laptop and desktop screens, kitchen counters, etc. It uses thymol, an extract of thyme for its germ-fighting goodness. The label indicates it kills Influenza A virus, H1N1, Rhinovirus type 37, MRSA, Staph. aureus, Salmonella enterica and Pseudomonas aeruginosa.