Staff members of the Nha Trang Pasteur Institute work on volunteers'  information. (Photo: VNA)

The institute plans to recruit 3,000 volunteers aged at least 18 in Quang Nam and Khanh Hoa provinces for the third-phase trials of the viral vector-based influenza vaccine.

Eligible volunteers should undergo four check-ups during the research process. Besides, their latest COVID-19 vaccine dose administration must be at least three months prior to the trials.

The recruitment will last from now through April 30, and the trials are scheduled to run for one year since the spray administration. The interval between two doses is 14 days.

The first- and second-phase clinical trials have proved this nasal spray vaccine is safe and good in immune response generation, according to the institute.