data.step

rubella_pink https://www.cdc.gov/vaccines/pubs/pinkbook/images/rubella-fig-02.jpg
polio_pink https://www.cdc.gov/vaccines/pubs/pinkbook/images/polio-fig-02.jpg
flu_pink https://www.cdc.gov/vaccines/pubs/pinkbook/images/flu-fig-02.jpg
measles_pink https://www.cdc.gov/vaccines/pubs/pinkbook/images/meas-fig-02.jpg

mpox_uk https://assets.publishing.service.gov.uk/government/uploads/system/uploads/image_data/file/153199/figure1.jpg

## https://bmcinfectdis.biomedcentral.com/articles/10.1186/s12879-018-3159-9
## Lai et al. BMC Inf. Dis. 18:256 (2018)
taiwan_dengue_map https://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12879-018-3159-9/MediaObjects/12879_2018_3159_Fig2_HTML.png