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around the world. it is wednesday, july 21st. that means we're half way there. that's an important mark, right? >> 48 hours from the olympics, too. >> exactly. covid, this is the bad news, it's back with a vengeance. cases are rising across the country and so are hospitalizations. the resurgence of the virus is driven by the delta variant and a stubborn resistance to vaccinations. the delta variant is now accounting for 83% of all covid cases in the u.s. and in some states it is north of that. nearly 73 million in the u.s. live in a county that is considered to have high risk, high virus transmissions and the states with the lowest vaccination rates are seeing the sharpest increase in new cases which are up tenfold in the last month. and despite reports of breakthrough cases on the rise as well, health officials like cdc director dr. rochelle walensky say this is proof that