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Watch Now: Delta Variant Update: Vaccine Efficacy, Sequencing, and Herd Immunity Studies | Local News

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Dr Dale Bratzler, director of OU Health, says vaccination rates of 60% or 70% will likely be insufficient to prevent the spread of the delta variant.



With more COVID-19 cases sequenced by the Oklahoma public laboratory, more infections due to the delta variant have been discovered, as this most contagious mutation in the virus now accounts for more than 50% of all new cases in the USA.

Thanks to a concerted effort to send more COVID-19 specimens to the state lab in Stillwater, sequencing has quadrupled in the past seven-day period. Sequencing determined that delta-variant infections in Oklahoma nearly doubled from 54 cases to 92.

For the week-long period that ended on Saturday, Oklahoma recorded 1,824 new cases, a weekly increase of about 400. Active cases in Tulsa County increased from week to week. other from 388 to 512.

The spread of the virus in Tulsa County has reset several zip codes to higher risk status, as shown by Tulsa Health Department Alert Card by color category. With a postcode of 291 people in southwest Tulsa turning red on the map for “serious risk” this week, four postcodes turned yellow after the map was almost entirely green for months.

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Oklahoma health officials reported on Tuesday that 896 infections were breakthrough cases, in which fully vaccinated people tested positive for COVID-19.

Dr Dale Bratzler, director of OU Health, said on Wednesday that those with breakthrough cases don’t seem to spread the virus as easily as others, “but remember, the delta virus is very contagious, and so even if you have few symptoms and you are infected, you could pass the virus on to someone else.