For the first time, a study suggests different COVID variants can lead to different long haul COVID symptoms.
Researchers in Italy looked at 428 patients who had been hospitalized with COVID and later developed long COVID. All the patients were infected early in the pandemic, by either the initial form of the virus or the first major variant, Alpha.
Long haulers who had been initially infected by the original strain, also known as the ancestral strain, were more likely to report loss of smell, difficulty swallowing, or hearing problems. Other studies have identified changes in the symptoms that appear in the initial stage of the disease. Compared to earlier variants, Omicron is associated with fewer cases of lost smell and more reports of sneezing. But the Italian study is the first to identify a trend with long COVID symptoms.
“I think understanding whether those long COVID symptoms are different will be really important since we need to plan for caring for large numbers of patients, especially who were infected during Omicron,” she said.
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