If you want to popularize this vaccine, if you want to popularize all people, so that all people can be vaccinated, then basically only through free, you can successfully popularize all the responsibilities, because many people have no resistance to this free thing, only free things can attract people, and with the rapid development of our economy, we will also provide free medical care in this area, because our economy is developing rapidly.
People are most concerned about such things, so people are most concerned about whether to pay for this vaccine. If they need to pay their own expenses, it will affect people's access to this vaccine. Many people will resist the vaccination because they have to pay for it themselves. So in order to avoid this situation, and because of our economic development, this vaccination is basically free, so that it can be popularized to everyone.
Generally speaking, free vaccination will basically become a trend in the future, because our economy is developing very rapidly, so this medical security will definitely be improved.