29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
286223
25210
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
nov 30, 1974 - Introducción de vacunas en contra del virus de la Hepatitis B, Hepatitis A, virus de la Varicela zoster, Varicela.
Added to timeline:
15 Nov 2017
0
0
244
evidencia 3
Date:
nov 30, 1974
Now
~ 49 years ago