I’m growing increasingly seceptical about the usefulness of testing in slowing the spread.
A lot of people are getting little if any symptoms and the escape the system completely, but they are still infected and if asymptomatic people swab positive surely they’re infectious.
People who realise they have the virus have been infectious for a few days. So testing might get them back to work if the result is negaitive but if it’s positive they’ve already been spreading for a few days.
The tests are unreliable, there are well documented cases of people with bad symptoms testing negative a couple of times before finally getting positive test – maybe.
The window for testing positive is quite narrow, you might be a contact who is told to test but go a bit early or late and come up negative.
Pepople’s attitude is a bit like junior’s geneneration’s attitude to AIDS tests. They get tested now and then but do little to protect themselves. Casual unprotected sex and test now and then, Barmy. Regular testing is seen as a substitute for taking measures not to get the disease. With Covid it’s down the pub, into work send the kids to school and get a test if anyone gets a snivel – by which time the virus is into a load more households.
I don’t have an answer, people don’t seem to be worried enough about gettng the virus to adapt their behaviour. As I posted a fesw pages back, the fear has gone, and testing can’t replace it.