There seem to be some pretty solid numbers on how long coronavirus will last on a given surface. But I’m curious what the curve looks like. Does it decay at a constant rate, like a radioactive substance? Or does it behave more like a group of animals denied food, where the population survives relatively intact for a while before hitting a point of rapid decay? I’m trying to evaluate the effectiveness of leaving things to sit for e.g. 24h if I can’t disinfect them and can’t wait the full recommended time.
Specifically "Both viruses exhibited exponential decay in virus titer across all experimental conditions". See the graphs on the last page for different surface types.
I have seen one source indicating that specifically on copper, there was a delay of half an hour or so followed by a rapid decline. I have also seen another source indicating that the effectiveness of sunlight in shortening the halflife declines with time. Wish I could find them...
There seem to be some pretty solid numbers on how long coronavirus will last on a given surface. But I’m curious what the curve looks like. Does it decay at a constant rate, like a radioactive substance? Or does it behave more like a group of animals denied food, where the population survives relatively intact for a while before hitting a point of rapid decay? I’m trying to evaluate the effectiveness of leaving things to sit for e.g. 24h if I can’t disinfect them and can’t wait the full recommended time.