Workers who had received three doses of the vaccine against hepatitis B were considered as vaccinated, while those who took one, two, none or did not know how many were considered as not vaccinated.
Fueron considerados vacunados los trabajadores que tomaron tres dosis de la vacuna contra hepatitis B y no vacunados aquellos que tomaron una, dos, ninguna o no sabían cuantas dosis.
Foram considerados vacinados os trabalhadores que tomaram três doses da vacina contra hepatite B e não vacinados aqueles que tomaram uma, duas, nenhuma ou não sabiam o número de doses.