The ministry said in a statement that it had taken the decision after a recommendation from specialist paediatricians and was still considering whether to vaccinate younger children.
“All the provinces, secondary schools, colleges, universities and vaccination centres are hereby required to commence the vaccination campaign of this age group with immediate effect,” the minister said.
Neighbouring South Africa, for example, is already administering shots to those aged 12 and over as it looks to ramp up the level of COVID-19 protection within its population.
Zimbabwe said the Sinovac shot would be the only vaccine eligible for use on teenagers. The country has predominately used Sinovac and another Chinese vaccine, Sinopharm, in its vaccination campaign so far.
The health ministry said Zimbabwe was determined to reach herd immunity by the end of the year and that 38% of the targeted population had been vaccinated by the end of October.
The country has recorded 132,926 cases of COVID-19 and 4,675 deaths overall.