acute; neuroinvasive SARS-CoV2, and an unexpected consequence of the direct infection of neurons by the SARS-CoV-2", have been demonstrated. "During the autopsy of the brain of patients who died as a result of the Covid-19, we detect the SARS-CoV-2 in cortical neurons, and note that the pathological features associated with infection with minimal immune cell infiltrates", detail the researchers. The virus of the disease Covid-19 is therefore capable of invading the brain and duplicate.

in addition, u.s. physicians have noticed an increase in cerebral vascular accidents (STROKE) in patients Covid young and middle-aged. In the Washington Post, Pascal Jabbour, a neurosurgeon at the hospital, Thomas Jefferson, said that many cases had unusual features. Usually blood clots appear in the arteries that carry blood away from the heart. However, in patients of the Covid-19, the clots can also form in the veins and are more difficult to treat. Sherry H-Y Chou, a neurologist at the university hospital of Pittsburgh, hypothesized that these conditions would be consistent with "friendly fire", that is to say, an immune response to be disproportionate. If you notice any symptoms of a STROKE (dizziness ; numbness or drooping of a part of the face, an arm, a leg or a part of the body ; problems élocutions...) contact 15 quickly.

The Covid can it cause hair loss ?

The sars coronavirus could cause a loss of hair on some people who have been positive Covid-19. According to a study published in August by the researcher and professor Natalie Lambert of the University of medicine of Indiana, this symptom is appeared several times. On the 1 567 respondents, 423 attest to these falls, approximately 27% of the subjects. One of the participants in the study explained that she had lost 75% of its mass hair after having contracted the disease. This would come out of the telogen emanation, a disordered capillary to cause significant hair loss or localized, usually caused by stress. According to Dr. Esther Freeman, a researcher at the American Academy of Dermatology, hair loss begins to be seen in the three months following the stress.

eye symptoms

The symptoms of the Covid-19 are similar to those of other infectious diseases typical of the winter season : cough, fever, body aches... Some people may also experience breathing difficulties. Over the year, various signs of the SARS-CoV-2 have been discovered by doctors and scientists. The search continues always in the end of the year, and allow the light of other symptoms. A study published in November 2020 in the medical journal BMJ Open has found that irritated eyes are a sign of the coronavirus.

An online questionnaire was made available to people affected by the Covid-19. An audit of the signs of the participants, their frequency and their duration, has been made. The ocular symptoms of the sick is being manifested before their infection were compared with those while they were affected by the coronavirus. On the 83 study participants, 66% have suffered from dry cough, 76% fever, 90% of the fatigue and 70% of the ageusia and anosmia. In regard to the ocular signs, the three most common symptoms among the participants of this research were the photophobia, which is sensitivity to light (18%), irritated eyes (16%) and itchy eyes (17%). The authors of this study have explained that "the frequency of irritated eyes was significantly higher during the state Covid-19 (16%), compared to the state pre-Covid (5%)". No difference between men and women were identified. The scientists added that "81% of the participants indicated that they were victims of ocular symptoms within two weeks after the other symptoms of the coronavirus". 80% also reported that these lasted less than two weeks.

Patients asymptomatic

Some of the symptoms of coronavirus are similar to those of winter illnesses such as the common cold or the flu : fever, cough, runny nose... This similarity creates confusion to differentiate between the evils. Yet, the manifestation of symptoms in people with the Covid-19 would not be so frequent. According to a study conducted by researchers from the University College London (UCL), 86% of residents in the United Kingdom tested positive are asymptomatic. This is nothing to say that this high proportion of asymptomatic individuals raises new questions, since the coronavirus would become more difficult to identify within the population. On 36 061 individuals tested, 115 of them were positive. Of these 115 persons, 16 had symptoms which represents a given of 13.9%. The other 99 are reported to be asymptomatic, 86.1% of positive cases.

This statistic is largely superior to those published in June 2020 in Addition to-Atlantic, in the journal Annals of Internal Medicine. The american study had detailed that 30 to 45% of the population affected by the virus was asymptomatic. According to the scientists, it was a "conservative estimate," since some people without symptoms could develop in the oj

Date Of Update: 01 February 2021, 06:57