@AGoldsmithEsq @alexmeshkin I'm reasonable sure it doesn't just spread by sex but is it possible that R-effective would nearly always be <1 outside of sex or sex-like contact? In effect that is close to the same thing.
@阿戈尔德·史密斯（AGoldsmithEsq@Alexmeskin）我有理由相信它不仅仅是通过性传播的，而且R-effective是否可能几乎总是如此<；1非性接触或类性接触？实际上，这几乎是同一件事。