Coronavirus is not the flu. Its worse.
Measles is one of the most contagious diseases we know. Just one person is likely to infect between 12 and 18 people. That number is called a disease’s “basic reproduction number,” or R0. Scientists use it to describe how contagious a disease is. Zika? It has an R0 of up to 6.6. Super contagious but the seasonal […]