I agree, Jacqui.

However, a morris dancing colleague of mine who was (is?) a Roche research chemist who was (is still?) investigating common cold viruses reckoned that once we show the symptoms, we are not very contagious as the symptoms we show (coughing and sneezing) are the result of our anti-bodies negating the virus.

Don't know if this is fact.

I prefer to err on the protective side.

Tone