Vaccination doctor put vaccine injection in the tube, and sent in atomizing equipment, after 25 seconds, the injection liquid was atomized to ‘white smoke’, and floated into atomizing cup. The vaccine recipient took a deep breath, and inhaled the ‘smoke’ in the cup and held breath for 5 seconds, and the vaccination was completed successfully. The whole process took less than 1 minute. On 8 November morning, 45-year-old citizen Mr. Ji tried recombinant COVID-19 vaccine for inhalation (adenovirus type 5 vector) at Chongchuan Qifan clinic, became the first citizen in Chongchuan district which was vaccinated with recombinant Covid-19 vaccine successfully.

From that day, recombinant COVID-19 vaccine (adenovirus type 5 vector) was started gradually in various counties (cities and districts) to improve immune work.

Recombinant COVID-19 vaccine for inhalation will not be used in routine immunization, only for ‘booster vaccination’.