Tracking the corona-virus reproduction rate ( It rose to 1.13 on Sunday in Germany and fell to 1.07 on Monday....Germany stated before they began to reopen that if they hit 1.2 again that things would have to close up again)...
https://uk.reuters.com/article/uk-he...-idUKKBN22N2ZU
"A lack of capacity for widespread testing would also make it difficult to accurately assess the transmission rate."