Coronavirus’s genetic fingerprints are used to rapidly map its spread
Widespread data sharing has revealed a clearer picture of the virus’s movements
![Brazil soldiers meet plane of people from Wuhan, China](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/02/021320_LS_corona-virus_feat.jpg?fit=1028%2C579&ssl=1)
Soldiers in Brazil wait to meet and quarantine arrivals from Wuhan, China, to prevent the coronavirus’s spread to that country.
Beto Barata/ASSOCIATED PRESS