BEIJING, June 11 (Xinhua) -- Researchers are conducting phase-1 and phase-2 clinical trials on a China-made inhaled COVID-19 vaccine, a Chinese health official said Friday.
The inhaled COVID-19 vaccine was jointly-developed by researchers from the Institute of Military Medicine under the Academy of Military Sciences and China's CanSino Biologics Inc.
Inhaled or nasal-spray vaccines were selected as one of China's vaccine technologies to combat COVID-19 from the very beginning, Shao added.
Another nasal-spray COVID-19 vaccine, developed by Xiamen University, the University of Hong Kong and Beijing Wantai Biological Pharmacy, has completed phase-1 and phase-2 trials. Researchers are applying phase-3 clinical trials overseas, to further evaluate the efficacy of the vaccine, according to Shao.