Infections - Reproduction number

Reproduction number

The reproduction number shows how fast the virus is spreading. The number shows how many people are on average infected by one patient with COVID-19. To find out more about the information on this page, go to ‘Explanation of the data presented’.

Last values obtained on Friday, 14 May. Is updated twice per week.

Source: RIVM

Download data: RIVM

Most recent reproduction number

0.95 confirmed cases per day.
0.05 lessthan the previous value

Number of people infected by one infectious person. This number is always two weeks old, since more current calculations are to unreliable.

Image to support the explanation above

The reproduction number shows how fast the virus is spreading. This number shows how many people are on average infected by one patient with COVID-19. The number of transmissions remains more or less constant when the reproduction number is 1, declines when it is less than 1 and increases when the number is above 1.

Value of Thursday, 29 April obtained on Friday, 14 May · Source: RIVM

The reproduction number over time

The reproduction number is not an exact value but a reliable estimate. Reproduction numbers (R) using data from less than two weeks ago are not reliable, therefore, the line depicting R stops at a date two weeks in the past.

17 Feb 202029 Apr 202100.511.522.5Alert value: 1

Value of Friday, 14 May · Source: RIVM