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Fig. 1 | BMC Public Health

Fig. 1

From: Low impact of regular PCR testing on presence at work site during the COVID-19 pandemic: experiences during an open observational study in Lower Saxony 2020-21

Fig. 1

Schematic illustrating the study design with a pre-phase of PCR-only-testing (April to August 2020) with a questionnaire concerning RKI-criteria (questionnaire Tab. S2 I, see supplement) and a main-phase of PCR- and antibody testing in parallel to an additional questionnaire (questionnaire Tab. S2 II, see supplement; August 2020 to June 2021) and a post-phase after testing with questionnaire Tab. S2 III

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BMC Public Health

ISSN: 1471-2458

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