Johns Hopkins Whiting School of Engineering Coronavirus Mapping Tool

On New Year’s Eve 2019, the World Health Organization (WHO) was notified of an outbreak of pneumonia of unknown origin in Wuhan province, China. Within days, the outbreak had surpassed 500 people with multiple fatalities. Public health officials in China quickly tracked the index case to a “wet market” in Wuhan and by 10 January the virus was determined to be a novel coronavirus related to both SARS and MERS. Days later, evidence of person-to-person transmission was confirmed.