For English, see below On July 6, 2021, the number of infectious persons was reported for the last time, because this figure is based on the number of hospital admissions. In this phase of the epidemic, where more and more people are vaccinated and therefore fewer people are hospitalized, the number of infections in the population is increasingly out of step with the number of hospital admissions. Therefore, the number of contagious persons is no longer calculated. The number of infectious persons per day in the Netherlands follows from the number of infections per day in the Netherlands and the number of days that an infected person can infect other persons. The number of infections per day in the Netherlands is estimated on the basis of serological data and hospital admissions per age group. We define infected persons here as people who have an infection, and who are also contagious to a reasonable degree, whereby demonstrable antibodies are eventually formed after this infection. From October 8, we use serological data from June 2020, before that we used serological data from April 2020. Between June 12 and October 8, the number of contagious people was also based on the number of test-positive cases because hospitalizations were very low; this step is now omitted. If someone contracts the corona virus, he/she is contagious to others for a while. How long this takes varies from person to person. We assume that an infected person is contagious from two days before symptoms to four to eight days after symptoms. Description of the variables: version: Version number of the dataset. When the content of the dataset is structurally changed (so not the daily update or a correction at record level), the version number will be adjusted (+1) and also the corresponding metadata in RIVMdata (data.rivm.nl). Date: Date for which the number of infectious persons was estimated prev_low: Lower limit 95% confidence interval prev_avg: Estimated number of infectious persons prev_up: Upper limit 95% confidence interval population: patient population with value “hosp” for hospitalized patients or “testpos” for test-positive patients Note: from On Friday 5 March 2021, the open data on the number of contagious persons will be published twice a week. On Tuesdays and Fridays, at 3:15 p.m. -------------------------------------------------- --------------------------------------------- Covid-19 contagious persons per day The number of contagious persons was reported for the last time on 6 July 2021, because this number is based on the number of hospital admissions. In this phase of the epidemic, where more and more people are vaccinated and therefore fewer people are hospitalized, the number of infections in the population is increasingly out of step with the number of hospital admissions. Therefore, the number of contagious persons is no longer calculated. The number of contagious persons per day in the Netherlands follows from the number of infections per day in the Netherlands and the number of days that an infected person can infect other persons. The number of infections per day in the Netherlands is estimated on the basis of serological data and hospital admissions per age group. We define infected persons here as people who have an infection, and who are also contagious to a reasonable degree, whereby demonstrable antibodies are eventually formed after this infection. From October 8, we use serological data from June 2020, before that we used serological data from April 2020. Between June 12 and October 8, the number of contagious people was also based on the number of test-positive cases because hospital admissions were very low; this step is now omitted. If someone contracts the corona virus, he/she is contagious to others for a while. How long this takes varies from person to person. We assume that an infected person is contagious from two days before symptoms to four to eight days after symptoms. Description of the variables: version: Version number of the dataset. When the content of the dataset is structurally changed (so not the daily update or a correction at record level), the version number will be adjusted (+1) and also the corresponding metadata in RIVMdata (data.rivm.nl). Date: Date for which the number of contagious people was estimated prev_low: Lower bound 95% confidence interval prev_avg: Estimated number of contagious persons prev_up: Upper bound 95% confidence interval population: patient population with value “hosp” for hospitalized patients or “testpos ” for test-positive patients Please note: from Friday 5 March 2021, the open data on the number of contagious persons will be published twice a week. On Tuesdays and Fridays, at 3:15 p.m.