Chat about Novel Coronavirus - 2019-nCoV - COVID-19

When did the self-isolation advice go from 'any contact' to such specifics -

From the 1pm lobby briefing question headlined: "No 10 does not rule out PM having to self-isolate if Alok Sharma tests positive for Covid-19"

"People have to self-isolate if they have had face-to-face contact, at
a distance of less than 1 metre, with someone who tests positive, or
if they have spent more than 15 minutes within two metres of that
person."

Is that seriously it? So I can spend all day at 2.00m away from a tested positive person... Or 14 minutes at 1.01m..... and that is fine....

As long as its more than a 1m for less than 15 mins, in the next week there is no reason to not see my hypothetical grandmother or visit my hypothetical cousin in the hypothetical hospice for hypothetically immunodeficient-children ....

It did makes things easier when they realised being asymptomatic was not a thing. Oh wait...