Children carry COVID-19 virus, small study finds

Children carry COVID-19 virus, small study finds

Children carry COVID-19 virus, small study finds

The German studies, published Tuesday in the peer-reviewed journal JAMA Cardiology, found heart abnormalities in COVID-19 patients months after they had recovered from the virus. However, for some time, it was unclear why many Covid-19 patients lost their sense of smell.

"This study found that in patients who had recovered from COVID-19, 87.4 percent reported persistence of at least one symptom, particularly fatigue and dyspnoea".

So far during the coronavirus pandemic, much focus has been on Covid-19 antibodies and the role they play in building immunity against the disease. At that stage, however, very little was known about how and why the virus affects an infected person's sense of smell.

Health records have indicated that COVID-19 patients are twenty-seven times more likely to have loss of smell but are only about 2.2 to 2.6 times more likely to have fever, cough or respiratory difficulty, compared to individuals who don't have COVID-19. This was surprising considering that sensory neurons, which are responsible for detecting and transmitting the sense of smell for the brain, were not discovered to be vulnerable to the disease. An worldwide team of researchers led by neuroscientists at Harvard Medical School (HMS) recently identified the olfactory cell types that are most vulnerable to infection by SARS-CoV-2 (the virus that causes Covid-19).

The study reveals that the olfactory sensory neurons do not have the genetic mechanism to encode the ACE2 receptor protein.

It means that a coronavirus infection most likely will not permanently damage sense of smell, Datta said.

"And so we think, on the whole, this is good news, and suggests that people who lose their sense of smell, for the most part, are going to go on to get their sense of smell back", Datta said.

Together, these data suggest that COVID-19-related anosmia may arise from a temporary loss of function of supporting cells in the olfactory epithelium, which causes changes to olfactory sensory nerves, the authors said.

Be that as it may, he included, "we need more information and a superior comprehension of the hidden systems to affirm this end".

"We know the virus is making its way into the heart muscle, and seems to cause an inflammatory response that we don't fully understand yet", Dr. Matthew Belford, an interventional cardiologist at Wake Forest Baptist Health in Winston-Salem, North Carolina, said.

The team now hopes that their results could lead to treatments for the condition, as well as the development of improved smell-based diagnostics for Covid-19.

"It can have serious psychological consequences and could be a major public health problem if we have a growing population with permanent loss of smell". "An observation of both the damage and recovery of the tissue would be even more compelling", he wrote.

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