A spray-type COVID-19 vaccine sprayed on the nose, not on injections, is being developed by domestic company. Amid the trend of muscle injection, attention is focused on claims that mucosal immunity is more effective in defending the COVID-19 virus.

Kcav (CEO Song Chang-seon) announced on the 27th that Mucovac, a COVID-19 mucosal vaccine candidate that is jointly researching with Konkuk University and Bionote, has succeeded in entering the second stage of the "Bio Medical Technology Support Project" supported by Ministry of Science and ICT and National Research Foundation of Korea.

Accordingly, Kcav will receive 2 billion won in research funds for non-clinical trials and clinical sample prod