According to a new study, 85% of Covid-19 “long-haulers” are experiencing at least four lingering neurological symptoms even if they weren’t hospitalized for their initial illness. The lingering symptoms include brain fog, headache, and the loss of smell and/or taste.
The study was published in the journal Annals of Clinical and Translational Neurology earlier this week. Researchers claimed to analyze information from 100 Covid-19 long haulers from 21 states. All participants were seen in person or over video conference at the Neuro Covid-19 Clinic at Northwestern Memorial Hospital in Chicago. The study went from May-November of 2020, and none of the participants were hospitalized when initially infected with the virus.
All participants claimed to experience Covid symptoms for more than six weeks, and on average they were seen for four to five months after their initial infection. Half of the participants had previously tested positive while the other half had tested negative but were still experiencing consistent Covid symptoms. The researchers of the study believed that all the participants who tested negative in the study likely did have the virus, but got it at the point in the pandemic when getting a test was nearly impossible.
“85% of participants reported at least four neurological symptoms. The most common symptom was ‘brain fog’ or trouble thinking, reported by 81% of participants; followed by headaches, reported by 68%; and numbness or tingling, reported by 60% of participants. More than half reported problems with their sense of taste or smell; 47% reported dizziness; 30% reported blurred vision; and 29% reported ringing in the ears,” according to the article.
According to a previous study posted by Live Science Magazine last year, “‘long COVID-19’ is an important emerging entity requiring multidisciplinary expertise and care. It’s unclear how many people have long COVID, but some studies suggest that about 30% of people with COVID-19 experience lingering symptoms up to nine months after their diagnosis.”
Study author Dr. Igor Koralnik claimed in a news conference that it’s likely millions of people are experiencing long Covid symptoms, so these studies are important. He also noted that more than 40% of the participants claimed to have struggled with anxiety and depression throughout their lives pre-pandemic, so more research is currently being done to see if there’s a link to mental illness and the long-Covid symptoms.
“About 70% of participants were women, which matches the sex ratio seen in some other autoimmune disorders, such as rheumatoid arthritis, which affects three times more women than men,” the authors wrote.
The authors also noted that this study was extremely preliminary and small, pointing out that a majority of the patients were white, and there’s a chance a lot of the long-haulers with negative Covid tests may have never had the virus to begin with. Researchers are planning on continuing these research efforts and are starting with analyzing how certain immune systems respond to Covid-19 proteins.
Eric Mastrota is a Contributing Editor at The National Digest based in New York. A graduate of SUNY New Paltz, he reports on world news, culture, and lifestyle. You can reach him at firstname.lastname@example.org.