Some countries will require proof of vaccination or an isolation period, especially if the mutation(s) of coronavirus is more contagious and/or more deadly. Tha

Some countries will require proof of vaccination or an isolation period, especially if the mutation(s) of coronavirus is more contagious and/or more deadly. That will make frequent travelers try to get vaccinations sooner. These two things in tandem will make news, making it even more common. This, combined with many people feeling pent up travel energy, will result in more than average international travel in the second half of 2021