What WHO calling the coronavirus outbreak a pandemic means
The organization is asking countries to double down on containment and mitigation efforts
![people in clean suits spraying a subway tunnel](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/03/031120_jl_coronavirus-pandemic_feat_1500.jpg?fit=1028%2C579&ssl=1)
Workers in South Korea, which has been hit hard by COVID-19, disinfect a subway station in Seoul to slow the virus’s spread.
NEWSIS/ASSOCIATED PRESS