CanSino Biologics has been approved by China to make the world's first inhaled COVID-19 vaccine.
The COVID-19 vaccine uses pieces of genetic material from a harmless adenoviruses to train the body to fight it. The vaccine is misted through the mouth. The vaccine can be used as a booster.
The needle-free vaccine is the first of over 100 oral or nasal vaccines currently in development around the world. Scientists hope that by giving vaccines through the nose or mouth, they will be able to prepare the immune cells in the body to fight the illness and prevent it from spreading.
There have been 21 of the worst epidemics and Pandemics.
CanSinoBIO representatives said in a statement that the self-administered dose can effectively induce immune protection in response to the disease.
CanSinBIO's vaccine has been approved in a few other countries and is used in China. The vaccine was effective in preventing COVID-19 symptoms and preventing severe disease after a single administered dose.
The immunity levels produced by two inhalations of the vaccine were the same as those produced by one injection.
The inhalable format is similar to the flu vaccine. Scientists think that a vaccine that targets the lungs and upper airway could be more effective at stopping the spread of infections than a vaccine that only targets the lungs.
In a recent study of the Convidecia Air vaccine published on a preprint server without peer review, two Sinovac shots followed by a lower dose inhaled vaccine produced detecable levels of omicron neutralizing antibodies in almost all of the cases. The number for both groups dropped after six months.
Chinese regulators hope that the new delivery method will encourage more people to bevaccinated, but how it will be received in an already highlyvaccinated population is not known. In comparison to the United States, China has given more than 3.4 billion vaccine doses.
Despite China's high vaccination rates, concern for China's healthcare system, which does not have widespread capacity for sudden patient influxes, and a dropoff in efficacy of China's vaccines over time has wedded the ruling Chinese Communist party to developing easily-administered boosters.
The 21 million people in the central Chinese city of Chengdu were given stay-at- home orders on Thursday after hundreds of people showed up.
Ahead of the party congress, there are new restrictions on movement. It's not clear if the zero-COVID policy will be slowly dropped once the congress is over.
It was originally published on Live Science
All Rights Reserved © 2024
