Quotes About Reproductive rate

There was no vaccine in sight; and the number of infections required to achieve herd immunity could be calculated, as it was a simple function of the reproductive rate. (The formula was 1 ? 1/R0, where R0 was the reproduction number.)

Each of the crude strategies had some slight effect, but none by itself made much of a dent, and certainly none had the ability to halt the pandemic by driving the disease's reproductive rate below 1. One intervention was not like the others, however: when you closed schools and put social distance between kids, the flu-like disease fell off a cliff.

Margulis said, because rival organisms and lack of resources prevent the vast majority of P. vulgaris from reproducing. This is natural selection, Darwin's great insight. All living creatures have the same purpose: to make more of themselves, ensuring their biological future by the only means available. And all living creatures have a maximum reproductive rate: the greatest number of offspring they can generate in a lifetime.