Cuba has become the first country in the world to vaccinate toddlers as young as two years old.
However, the jabs given to infants are homegrown which has not been recognised by the World Health Organization(WHO).
Clinical trials on minors were conducted on Friday and vaccines for the toddlers were distributed on Monday, reports claimed.
The country with a population of around eleven million is famous for its healthcare system. Cuban authorities hope to vaccinate all children as schools reopen.
The authorities had completed clinical trials on minors with Abdala and Soberana vaccines as they began the inoculation campaign for children initially on Friday.
On Monday, health officials began inoculating 2-11 age group kids in the central province of Cienfuegos.