In comments on Saturday, Mohammadreza Shanesaz said the second and third wave of COVID-19 are inevitable and will take place undoubtedly.
He said while worries about another peak in spring have been allayed considering the good preventive measures across the country, there are serious concerns about a new wave of the coronavirus in autumn.
The best approach to containing the viral disease is still observing personal hygiene and complying with social distancing regulations, he added.
Shanesaz further pointed to the difficult and laborious process of making a vaccine for COVID-19 considering the complicated nature of the virus, saying Iran is among the top countries conducting research in this field.
Iranian President Hassan Rouhani has ordered the Health Ministry and the Vice Presidency for Science and Technology to focus efforts on the development of a vaccine for the novel coronavirus.
On Saturday, the Health Ministry spokesperson said 80 percent of the coronavirus positive cases in the country have fully recovered from the infectious disease and left the hospital.