“and their “R” is now 1.”
What does that mean?
R is the “reproduction rate.”
R0 means that the typical infected person infects no other people.
R 1 means that the typical infected person infects one other person.
R 2 means that the typical infected person infects two other people.
Anything above 1, and cases are growing.
At 2, they’re doubling.
At 3, they’re tripling.