Data dictionary
Open source, on this site, means the files below, the parser name, and this dictionary. A public source-control URL is not recorded in this workspace.
Parser version: product-shell 2026-10-05. The comparison table is built from the four category extracts. The schedule object is schedule-matrix-data.js, copied from the matrix page.
Schedule status
| Code | Meaning on every country column |
|---|---|
| All (U) | On the national schedule for the general child population. |
| Risk (R) | Risk-group, regional, private-market, or not for every child. |
| Shared (S) | Shared clinical decision-making. |
| None | Not on this national schedule in the matrix. |
United States notes may quote the August 2026 federal recommendation categories. Those notes are not the classification of Kenya, Germany, or any other column. The matrix does not store age at first dose or number of doses. Those cells on the diff say “not in the matrix dataset.”
Report counts
Each system counts a different thing. The comparison page names the count field and does not rank countries by the raw number.
vaers_category_data.json— mention counts, VAERS files 2006–2024.dosesis present for some products. The extract meta does not name wheredosescame from.canada_vigilance_category_data.json—uniqueReportsandseriousReports. No dose field.pmda_category_data.json— JADER mention counts. Serious if any reaction outcome is death or sequelae. No dose field.eudravigilance_category_data.json— individual-case totals. Serious count is null in the extract. No dose field.
Evidence state
Allowed states: supports, refutes, mixed, searched and empty, not searched. A prototype file, data/evidence_matrix/covid-myocarditis-screened.json, is screened and not adjudicated. It is the only populated outcome. Every other outcome on the vaccine pages is not searched.
Aluminum
ingredients/vaccine_product_composition.json field aluminumContent, package-insert text. The calculator multiplies the microgram or milligram figure you select by the dose count you type. It does not look up a national schedule.