Those who found the concept of asymptomatic transmission suspect were right to be. Not saying it never happens. Am saying it’s implausible. Here’s why. To transmit, you need to have cultured virus in your airways. And you need to make respiratory manoeuvres sufficient to expel... https://twitter.com/clarecraigpath/status/1336707467233865741

...plenty of infected secretions. Here’s the thing. Unless you’re symptomatic, you won’t cough repeatedly. And unless you’ve got plenty of virus in your secretions, it’d be unlikely you will infect someone. But if you’ve grown an infectious culture in your airways, you WILL be...

...symptomatic. This is because either the virus is attacking your tissues & this will make you feel unwell, or because your immune system is fighting the virus, and that, too, makes you feel ill. It’s just implausible to pretend that lots of people somehow harbour intense...

...infection yet have no symptoms. Equally, expulsion of virus doesn’t happen in quantity in exhaled air during tidal breathing. And by definition, violent respiratory actions like coughing, which does, is a symptom. It sounded invented the 1st time I heard it. And it was.