As the pandemic progresses, new symptoms of the Coronavirus are being discovered. To the long list that exists, which includes for example excessive pressure in the ears, a sense of muffled ear and hearing loss, there are now new effects experienced by some patients with Covid-19: vertigo, dizziness and nausea. More details on these neurological symptoms of Coronavirus will be presented below.
The association between Coronavirus infection and vertigo and dizziness problems was revealed in a study conducted by the University of Manchester and the Manchester Biomedical Research Centre. The results of the research were published in the "International Journal of Audiology" and concluded that the prevalence of dizziness in patients with Covid-19 is 7.2%. The same study indicates that 7.6% of people infected with SARS-CoV-2 suffer from hearing loss and 14.8% suffer from tinnitus.
Manchester researchers also warn that vertigo and dizziness can continue even after the long-awaited negative swab. Kevin Munro, one of the authors of the study, acknowledges that “in some cases, patients report that symptoms persist after negativization. Others point out that they have decreased but are still present, but there are still many unknowns about it ”. Indeed, Munro insists that the investigation should be broadened and hearing tests be conducted. Furthermore, the researchers acknowledge that it is unclear whether hearing problems are directly attributed to the virus or to other factors, such as intensive care treatments provided to patients with the most aggressive forms.
Dizziness is now considered as a common Covid-19 side effect. However, it is still not clear nor confirmed that dizziness, vertigo and nausea episodes after vaccine shot are directly related to the administration.
In fact, according to the Centers for Disease Control and Prevention (CDC), dizziness following COVID-19 vaccination can occasionally be a symptom of an allergic reaction, but this is most common in the first 15 to 30 minutes of vaccination. At the same time, vertigo can be also an anxiety-related response, which often occur after many different vaccines.
Covid-19's relationship with hearing loss, tinnitus and, now, dizziness has led many people to wonder if labyrinthitis, which involves inflammation of the inner ear, may also be a symptom of the virus. However, no scientific evidence for this link has yet been found.