deaths remain low in comparison to the case counts. reporter: not only are more people getting covid, more are being infected for a second time. researchers in england spoke with 3,500 covid-positive people this month two-thirds reported having either a suspected or confirmed case before. here in new york, about 80% of reported reinfections have been during the omicron wave they re also up in minnesota and washington state, but notably some 60% of so-called second-timers there were unvaccinated. in illinois, brian kuhns first got covid in march of 2020 he spent weeks on a ventilator and later underwent a double lung transplant. they told me that if i got it again, i would die. so i was very afraid. reporter: even though he was vaccinated this month, he did test positive again. this time it was much easier. i actually didn t have too many symptoms until after i knew i had it. reporter: doctors say omicron may have mutated so much that even those who are vaccinated might get