By Matt Stefanski • Published August 10, 2023 • Updated on August 10, 2023 at 11:42 pm
NBC 5 News
Following a rise in COVID cases and hospitalizations across the country this summer, as well as a “mini-surge” in the Chicago area, questions have surfaced about what precipitated the uptick and whether it can be traced to a specific variant.
The EG.5 omicron subvariant, also commonly known as Eris, accounts for the largest number of U.S. COVID infections compared to any other strain, according to the latest data from the Centers for Disease Control and Prevention. From a nearly two-week period beginning on July 23 and ending on Aug. 5, EG.5 was responsible for more than 17% of all U.S. COVID cases, a jump of 5% compared to two weeks earlier.
In response to a rise in cases globally, the World Health Organization on Wednesday classified EG.5 as a variant of interest. A descendant of the XBB sublineage XBB.1.9.2, EG.5 has one additional spike mutation, allowing it to evade immunity easier than others.
While first detected in Feb. 2023, the WHO added EG. 5 to its list of variants under monitoring on July 19.
When it comes to symptoms, they appear to largely mirror those experienced with other COVID infections.
“EG.5 has been detected in the U.S. recently, but the data we have gleaned from the global circulation of the virus has shown that its symptoms are the same as other variants,” Andrew Pekosz, a professor in Molecular Microbiology and Immunology with the John Hopkins Bloomberg School of Public Health, said in an article. “Its disease potential appears to be exactly the same as other variants’ as well.”
People who contract COVID may exhibit a wide range of symptoms, including the common ones listed below, as defined by the CDC:
- Fever or chills
- Cough
- Shortness of breath or difficulty breathing
- Fatigue
- Muscle or body aches
- Headache
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- Diarrhea
In an email to NBC Chicago on Thursday, a CDC spokesperson said guidance and information on the agency’s website hadn’t changed — despite the emergence of new strains.
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