Do you need vaccination for long-distance travel?

Yes, because you will meet many people on a long trip, people will come and go all over the world, and COVID-19 is hidden, so you need to get vaccinated.

Vaccination before travel is a good means of protection, and vaccination is not foolproof, and other protective measures cannot be left behind.

The general process and cycle of vaccine research and development includes two stages: the first stage is the early stage of vaccine research and development, including obtaining immunogen (obtaining live virus, separating related subunits, obtaining recombinant protein or synthesizing related DNA(RNA) through gene recombination technology, immune response test, animal protection test, immunogen production process (amplification) optimization, preclinical toxicology research and so on.

The second stage is the process of vaccine development and registration, including pre-clinical research, clinical application and clinical trials, and finally the vaccine can be listed.