Impact assessment of immunization and the COVID-19 pandemic on varicella across Europe using digital epidemiology methods: A descriptive study (IMAGE)
Caption
Monthly relative search query popularity of varicella keywords in European countries without universal varicella vaccination, 2015–2021. The Google Trends Index is calculated as the number of keyword searches divided by the total number of searches within a specific location and time period; it is standardized to range from 0 (no search activity) to 100 (peak search activity).
Credit
Sabale et al., 2023, PLOS ONE, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
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Credit must be given to the creator.
License
CC BY