First of all, the development of a vaccine needs to go through many stages. First, laboratory experiments were conducted to determine the stability of the vaccine. Second, the experiment was carried out on mice. After the mouse experiment is successful, there will be other animal experiments. Finally, clinical trials will be conducted on people. Now this nasal COVID-19 vaccine has entered the clinical trial stage, which means that the previous stage has been successful, so the last stage is very likely to be successful.
Now, with the rapid progress of science and technology, especially medicine, the epidemic situation in COVID-19 has been dealt with promptly and quickly, the causes have been found and corresponding measures have been taken. COVID-19's vaccine research and development followed closely. Researchers have professional knowledge, skills and experience, and several teams have participated in research and development. The first nasal spray vaccine stands out, indicating that it involves the painstaking efforts and energy of countless researchers, and such a vaccine may have certain effects.
However, this nasal spray vaccine has just started clinical trials, and this last stage also contains a lot of uncertainties. In this case, we can't guarantee that it has the same effect on people as it does on animals. Perhaps this vaccine is not effective for some people, but it is effective for some people, and it needs follow-up experiments to determine.
By the time the vaccine reached the clinical trial stage, the vaccine had been more than half successful. No matter whether it is really effective for human body in the end or whether it can really enter the hands of ordinary citizens, it is a breakthrough in the process of vaccine research and development in COVID-19, which is of great help to the subsequent vaccine research and development.
Of course, we all hope that this nasal COVID-19 vaccine can successfully and quickly enter the market. The epidemic has lasted for such a long time, and everyone hopes to end it soon. At the same time, I have to sigh that the progress of the country can achieve this step in such a short time. Let's hope that the vaccine will succeed soon.