Diagnosis of a cold before symptoms appear. Free Technical Library News

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Diagnosing a cold before symptoms appear

13.01.2023

Researchers from the University of Michigan have found that the process of reduced immunity followed by SARS is preceded by a temporary but noticeable decrease in cognitive abilities.

Scientists conducted a study in which 18 participants tested their attention, reaction time and ability to switch between numbers and symbols three times a day. On the fourth day of the study, the group was purposefully exposed to the human rhinovirus (HRV), commonly responsible for the common cold.

Throughout the days, participants lavaged their noses to measure the presence and volume of viral cells shed. Volunteers were also asked to rate their well-being based on eight symptoms, including fever, cough, headache, nasal congestion, runny nose, sneezing, sore throat and fatigue.

After all, those who shed the most virus and had severe symptoms tended to show fluctuating cognitive performance in the days leading up to their illness.

The authors of the study believe that their work may be the key to the early diagnosis of colds. They note that the current study is small and only hints at a possible link between cognitive function and immune system problems. Further studies in large cohorts are needed to verify the results.

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