As of early March 2020, a new coronavirus, called COVID-19, is in more than 70 countries and has killed more than 3,100 people, the vast majority in China. That's where the virus emerged back in December 2019. This isn't a new phenomenon for China; in 2003, the SARS virus also emerged there, and under similar circumstances, before spreading around the world and killing nearly 800. Both SARS and COVID-19 are in the "coronavirus" family, and both appear to have emerged from animals in China's notorious wildlife markets. Experts had long predicted that these markets, known to be potential sources of disease, would create another virus. The markets, and the wildlife trade that supports them, are the underlying problem of these pandemics; until China solves that problem, more are likely to emerge.