Fig. 2.

COVID-19 vaccine effectiveness against lab-confirmed COVID-19 hospitalization, by vaccine product in use and by age group, Latin America, 2021. Adjusted for continuous age, sex, secondary administrative unit location of residence, date of hospitalization grouped into categorical epiweeks, presence of 1 or more comorbidities, and study site country. Error bars show the 95% confidence intervals. Some estimates and/or 95% confidence intervals fall outside of the range 0–100% shown on the graph. These values can be found in Table 2. TND = test-negative design.