Satellite images of hospital parking lots in Wuhan as well as internet search trends, show the coronavirus may have been spreading in China as early as last August, according to a new study from Harvard Medical School. Shelby Lin Erdman writes for CNN that the study, which has not yet been peer-viewed, found a significantly higher number of cars in parking lots at five Wuhan hospitals in the late summer and fall of 2019 compared to a year earlier; and an uptick in searches of keywords associated with an infectious disease on China’s Baidu search engine.