R0 is generally a pretty good “this is how contagious this virus is” metric, and is dependent on the environment. If two diseases have different R0s in the same environment, the one with the higher R is more contagious (modulo something really weird). But environmental changes can affect R0 as much as they affect Rt.
R0 is generally a pretty good “this is how contagious this virus is” metric, and is dependent on the environment. If two diseases have different R0s in the same environment, the one with the higher R is more contagious (modulo something really weird). But environmental changes can affect R0 as much as they affect Rt.