where are we with this
PP: "and serial testing, you can show someone becomes contagious 24-48 h before developing signs " Is that 'asymptomatic' signs Peter ?
symptoms - I feel crap = what pt feels/reports
sign - what doccy nursey elicit - here a positive test
erm this distincition has been around for - er 150y
The idea of asymptomatic spreaders has been around for 350 y - Daneil Defoe noticing plague of 1666 MUST be spread by the asyptomaitc and not those nailed up in houses
so once again - not "does it occur" (yes that is, even to an ABer)
but 'what is the contribution to the current pandemic?@
Oh and for the thinker askinng why the Ro seems to have passed beyond - useful for the inital upswing of the first wave
fr'instance wivvan Ro of 1.4 at the start, when 50 % are immune then it is gonna be 0.7 ( same virus, difft population)
Sqad response - if a test is =ve the chance of having covid on you is in excess of 95% - Lat Flow is so highly concordant with PCR that it is not really worth confiirming one with the other
Are there any other points arising