Get year of introduction for vaccines Retrieve a list of the year when a vaccine was introduced to the entire country.

Get year of introduction for vaccines Retrieve a list of the year when a vaccine was introduced to the entire country.

get_yovi(vaccine = NULL)

Arguments

vaccine	Vector of vaccine codes as characters. Default is NULL which returns all vaccines in the dataset.

Details

Data source of vaccine schedules: https://www.who.int/immunization/monitoring_surveillance/data/year_vaccine_introduction.xlsx