Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12879-021-06208-2/MediaObjects/12879_2021_6208_Fig1_HTML.png)
Regional trends of Covid-19 cases and rates of seroconversion among HCWs. The grey area represents the daily incidence rates per 100,000 inhabitants in Chile’s Metropolitan Region, determined by RT-PCR [14]. The black line shows the number of daily Covid-19 patient admissions at ClÃnica Alemana de Santiago (CAS). Monthly seroconversion rates of HCWs are represented with a blue line