A loss of taste and smell has become a telltale sign of a coronavirus infection for many, experts said, with a new study released this week noting how common it is for those who have suffered from a case. mild COVID-19.
In a study published Tuesday in the Journal of Internal Medicine, researchers found that about 86% of people with mild cases of coronavirus had lost their sense of taste and smell.
The study involved more than 2,500 patients in 18 European hospitals.
“[Olfactory dysfunction] is more prevalent in mild forms of COVID-19 than in moderate to critical forms, ”the researchers said in the study, noting that according to their research, 75% to 85% of people have regained their ability to taste and taste smell two months after their infection, while 95% of patients regained their ability to taste and smell at six months.
THE CORONAVIRUS VARIANT IN THE UK IS THE MOST LIKELY TO DISTRIBUTE IN THIS AGE GROUP, STUDY SUGGESTIONS
However, about 5% of patients still had not regained this ability after six months.
In comparison, only about 4% to 7% of people with a “moderate to severe” COVID-19 infection reported losing their taste and smell.
Interestingly, the researchers also found that younger COVID-19 patients were more likely to lose their sense of taste and smell than older patients, although the reasoning behind this requires further analysis, have- they noted.
As to why people with mild cases of COVID-19 were more likely to report losing their taste and smell, the researchers offered an explanation.
UK CORONAVIRUS VARIANT SUSCEPTIBLE ALREADY IN THIS STATE, DOCTOR WARNS
“The main hypothesis underlying the higher prevalence of anosmia in mild COVID-19 would be differences in the immune response to infection in mild and moderate to critical patients. In this hypothesis, patients with mild COVID-19 could have a better local immunological response thanks to a higher production of IgA, which could limit the spread of the virus in the body. further studies are needed to prove this theorem.
“[Olfactory dysfunction] is a disorder prevalent in patients with COVID-19 with a higher prevalence in patients with mild forms of the disease. At two months follow-up, 75% to 85% of patients recovered olfaction according to subjective and objective olfactory evaluations. Future studies are needed to determine the long-term recovery rate of patients with COVID-19, ”the researchers concluded.