Congo (Brazzaville)
COG(level)
https://github.com/covid19datahub/COVID19/blob/master/R/iso_COG.R
World Bank Open Data (2018): population.
Johns Hopkins Center for Systems Science and Engineering: confirmed cases, deaths, recovered.
Our World in Data: tests, total vaccine doses administered, people with at least one vaccine dose, people fully vaccinated, hospitalizations, intensive care.