and also a gut punch. it wasn t even three weeks ago that the international travel world changed in a big way a 600-day delay in getting vaccinated and just any passengers, foreign nationals into the united states, now so long as they prove they have vaccinations and do not have covid with a negative covid test, they can come into the also. also the numbers for air trite right now are pretty much off the charts. it seems like the numbers were pushed up a bit by international travel and could likely go higher as people begin returning at the end of the holiday. just when we thought we were clawing our way out of the delta variant mess, what a gut punch. pete muntean, thank you very much. south african health experts are as elizabeth cohen reports, scientists are racing