One in 10 people who were affected with mild Covid-19 infection and recovered are likely to face loss of smell, taste, and fatigue up to eight months, according to a new study. The study by researchers at Danderyd Hospital and Karolinska Institutet in Sweden revealed that one in 10 mild Covid-19 survivors can have moderate to a severe negative impact on their work, social, or home life.
"We investigated the presence of long-term symptoms after mild Covid-19 in a relatively young and healthy group of working individuals, and we found that the predominant long-term symptoms are loss of smell and taste," said Charlotte Thalin, lead researcher and specialist physician at Danderyd Hospital and Karolinska Institutet.
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"Fatigue and respiratory problems are also more common among participants who have had Covid-19 but do not occur to the same extent," Thalin said. However, the research did not show an increased prevalence of cognitive symptoms such as brain fatigue, memory and concentration problems, or physical disorders such as muscle and joint pain, heart palpitations, or long-term fever, Thalin noted.
The findings are detailed in the JAMA: Journal of the American Medical Association. The three-phase study first collected blood samples from 2,149 participants in 2020. Of these, about 19 percent showed antibodies against SARS-CoV-2 — the virus that causes Covid19 infection. The blood samples were collected every four months. In January 2021, the team examined the self-reported presence of long-term symptoms in 323 healthcare workers and compared it with 1,072 healthcare workers who did not have Covid-19 throughout the study period.
The results show that 26 percent of those who had Covid19 previously, compared to 9 percent in the control group, had at least one moderate to a severe symptom that lasted more than two months and that 11 percent, compared to 2 percent in the control group, had a minimum of one symptom with a negative impact on work, social or home life that lasted at least eight months. (IANS/SP)