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the delta variant accounts for about 83% of the country’s COVID-19 cases, according to the Centers for Disease Control and Prevention.
The variant, which was first detected in India in December, is significantly more contagious and spreads faster than any other strain, the CDC said.
According to the CDC, there is “evidence of increased transmissibility, more serious illness (eg, increased hospitalizations or deaths), significant reduction in neutralization by antibodies generated during a infection or previous vaccination, reduced efficacy of treatments or vaccines, or detection of diagnostic failures, “associated with the delta variant.
Unvaccinated people are most at risk, the CDC said, but vaccines are not 100% effective. As cases continue to increase, here are some answers to your questions about the delta variant.
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How effective are vaccines against the delta variant?
The results of studies conducted so far show a range of efficacy against the delta variant for each COVID-19 vaccine. Many studies have yet to be peer reviewed.
Previous data from Israel shows that Pfizer-BioNTech the vaccine is 64% effective against the delta variant, according to Israeli Ministry of Health.
Another study – more recent, but not yet peer-reviewed – shows that the Pfizer vaccine is 88% effective against the delta variant and 96% effective against hospitalization of the delta after two doses, according to one. Public Health England review, Yale Medicine reported.
Modern, in a study not yet peer reviewedsaid his vaccine is effective against the delta variant, Yale Medicine said.
the Oxford-AstraZeneca The vaccine, which is not an mRNA vaccine, is 60% effective against the delta variant and 93% effective against hospitalization, according to Yale Medicine.
the Johnson & johnson the vaccine may not be as effective, however, like those who received an mRNA vaccine, according to a study published by bioRxiv Tuesday. The study has not yet been peer reviewed or published.
The study indicates that the 13 million people who received the vaccine may need to receive a second dose, ideally the Pfizer or Moderna vaccine.
Are the symptoms of the delta variant different from those of COVID-19?
It’s possible.
Common symptoms of COVID-19 include cough, fever, and loss of taste or smell.
With the new delta variant, an infected person may have a runny nose, sore throat or headache, depending on the ZOE COVID study application, a non-profit initiative launched in 2020 to support COVID-19 research which is “the world’s largest ongoing study on COVID-19.”
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Does a COVID-19 test detect the delta variant?
The delta variant has distinctive biological markers that some COVID-19 tests might not be able to detect, according to Fortune.
COVID-19 tests can detect if you are infected with COVID-19, but might not be able to specifically differentiate the delta variant.
How do you test the delta variant?
A polymerase chain reaction (PCR) test is more likely to detect the delta variant than a COVID-19 test, according to Fortune.
Fortune reported that companies are creating rapid tests to detect the delta variant without the need for a PCR test.
Are there any travel restrictions in the Delta variant?
White House press secretary Jen Psaki said on Monday that the United States would not lift any existing travel restrictions on the delta variant.
“Considering where we are today… with the Delta variant, we will maintain existing travel restrictions at this point,” Psaki said. “Driven by the Delta variant, cases are increasing here with us, especially among those who are not vaccinated and appear to continue to increase in the coming weeks.”
Where are the Delta variant hotspots in the United States?
Surgo Ventures, a nonprofit dedicated to solving global health and social issues, has released a list of the top 20 counties in the United States that are considered “delta danger zones.”
“We believe these 20 counties are danger zones in the Delta, which means they represent the strongest convergence of vulnerability to COVID-19, underlying community barriers to vaccination, and low vaccination rates of all counties in the United States at this point, ”said Dr. Sema Sgaier, co-founder and CEO of Surgo Ventures, said in a press release.
- Charlton, Georgia
- Newton, Texas
- Pémiscot, Missouri
- McDonald, Missouri (tie)
- Grundy, Tennessee (tie)
- Ziebach, South Dakota
- Hempstead, Arkansas
- Ripley, Missouri
- Lanier, Georgia
- Motley, Texas
- Baker, Florida
- Telfair, Georgia
- Heard, Georgia
- Holmes, Florida
- Washington, Florida
- Carter, Missouri
- Jeff Davis, Georgia
- Texas, Missouri
- Treutlen, Georgia
- Bacon, Georgia
Contribution: Steven Bacon and John Vargas / USA TODAY
Daniella Medina is Digital Producer for USA TODAY Network. Follow her on Twitter @danimedinanews.
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