A municipal worker disinfects the stair handrail to stop the spread of the COVID-19 in Cascais, Portugal, March 28, 2020. The number of confirmed infections with the coronavirus has risen by 902 to 5,170 in Portugal, with 100 deaths associated with COVID-19, the disease caused by the virus, 24 more than Friday, the daily bulletin of the Directorate-General for Health (DGS) on Saturday. (Photos: Pedro Fiuza/Xinhua)

A municipal worker disinfects the street to stop the spread of the COVID-19 in Cascais, Portugal, March 28, 2020. The number of confirmed infections with the coronavirus has risen by 902 to 5,170 in Portugal, with 100 deaths associated with COVID-19, the disease caused by the virus, 24 more than Friday, the daily bulletin of the Directorate-General for Health (DGS) on Saturday.

A municipal worker disinfects the ground outside a building to stop the spread of the COVID-19 in Cascais, Portugal, March 28, 2020. The number of confirmed infections with the coronavirus has risen by 902 to 5,170 in Portugal, with 100 deaths associated with COVID-19, the disease caused by the virus, 24 more than Friday, the daily bulletin of the Directorate-General for Health (DGS) on Saturday.

A municipal worker disinfects the street to stop the spread of the COVID-19 in Cascais, Portugal, March 28, 2020. The number of confirmed infections with the coronavirus has risen by 902 to 5,170 in Portugal, with 100 deaths associated with COVID-19, the disease caused by the virus, 24 more than Friday, the daily bulletin of the Directorate-General for Health (DGS) on Saturday.