According to the figures released by the Ministry of Health 4.4 million people have so far received one dose, 3.4 million two doses and 130 459, three doses, which means there are at least one million people who have received one dose but are still to get their second.
New cases also continue to rise with 632 yesterday but one person died and 276 recovered.
Active cases rose to 5 099 with Mashonaland East still in the lead with 1 613 cases followed by Manicaland with 1 299 and Masvingo 831.
Harare has only 85 cases and Bulawayo 65.
Zimbabwe is planning to roll out a massive exercise for 12 year-olds and above, mostly those in secondary schools.
It has enough vaccines to vaccinate the entire eligible population but there has been a slow uptake since October last year when it brought the deadly Delta variant under control.
Though Zimbabwe once led southern Africa in terms of vaccination numbers, it is now trailing behind Botswana where 49.4% of the population are now fully vaccinated. In South Africa 29.2% are fully vaccinated and in Zimbabwe only 22.9% are.