Text and Data Mining valid from 2018-12-01
Received: 14 March 2018
Accepted: 23 November 2018
First Online: 7 December 2018
Ethics approval and consent to participate
: The study was not submitted for research ethics approval as the activities described were conducted as part of the legislated mandate of the Health Department of Catalonia, the competent authority for the surveillance of communicable diseases, which is officially authorized to receive, treat and temporarily store personal data on cases of infectious disease according to Decree 203/2015 of the 15 September which created the epidemiological surveillance network. Therefore, all study activities formed part of public health surveillance and were thus exempt from institutional board review and did not require informed consent.
: Not applicable.
: The authors declare they have no competing interests.
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