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Fig. 1 | BMC Infectious Diseases

Fig. 1

From: Estimating vaccine effectiveness against SARS-CoV-2 infection, hospitalization and death from ecologic data in Costa Rica

Fig. 1

Percentage of people vaccinated with 1 and with 2 doses by age group plotted against calendar time (January 1, 2021 to May 13, 2021). A person is defined as vaccinated with two doses on a given day if the second dose was received at least 14 days previously. A person is defined as vaccinated with one dose on a given day if the first vaccination was received at least 14 days previously and no second dose was given more than 14 days previously. Black, dark gray and light gray lines correspond respectively to 20–59, 60–74 and ≥ 75-year age groups. Solid lines are for one dose and dashed lines for two doses

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BMC Infectious Diseases

ISSN: 1471-2334

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