COVID Fact Versus Fiction: Delta Variant

What We Know and Don’t Know About the Most Hotly Debated Coronavirus Topics

Dr. Beth Prinz tests a patient in their car outside a clinic in Goleta. | Credit: Daniel Dreifuss (file)

There is a flood of new COVID-19 information available online and on social media every day, and not all of it is reliable. In this series, the Independent will try to separate common COVID myths and misconceptions from truth using information from the Santa Barbara County Public Health Department, Centers for Disease Control and Prevention (CDC), and World Health Organization, as well as studies from Johns Hopkins and Yale. 

The Delta coronavirus strain, first detected in India in December 2020, has quickly become the predominant variant in the world and currently accounts for more than 80 percent of new cases in the country, according to Yale Medicine. This strain is considered by the CDC as “more transmissible than the common cold and influenza,” and those infected “carry tremendous amounts of virus in their nose and throat” that can spread the virus to others “whether or not they have symptoms.”

It is no myth that this variant is highly contagious and easily transmitted, even among the vaccinated: In the outbreak in Provincetown, Massachusetts, where a crowded holiday weekend turned into a 470-case cluster, three-fourths of the cases involved those who’d been vaccinated. 


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S.B. County Public Health Officer Dr. Henning Ansorg has said with the Delta variant, people become ill faster, and it lingers longer and locks onto respiratory tract cells more securely.

These “breakthrough” cases stoke fear about this variant, but public health officials at the county and federal level have all agreed: The most effective methods for combating this new wave of cases due to the Delta variant are masks and vaccination. Across the country, indoor mask mandates have been reinstated and several institutions have adopted COVID-19 vaccine mandates ​— ​including UCSB and SBCC.

The Delta variant is a large contributor to the recent rise in cases. According to the CDC, in late June, the “seven-day moving average” of reported cases was around 12,000. On July 27, the average cases reached over 60,000, which the CDC described as more like the rate of cases we had seen before the vaccine was widely available.

Since this variant and other new strains are evolving, information is still being acquired and studies are being conducted. Whenever possible, check with reputable sources of information with verifiable statistics when sharing information online and on social media.


At the Santa Barbara Independent, our staff is working around the clock to cover every aspect of this crisis — sorting truth from rumor.  Our reporters and editors are asking the tough questions of our public health officials and spreading the word about how we can all help one another. The community needs us — now more than ever — and we need you  in order to keep doing the important work we do. Support the Independent by making a direct contribution.

 

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