science project- characteristics of human Corona viruses
Answers
Answer:
The coronavirus disease 19 (COVID-19) is a highly transmittable and pathogenic viral infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which emerged in Wuhan, China and spread around the world. Genomic analysis revealed that SARS-CoV-2 is phylogenetically related to severe acute respiratory syndrome-like (SARS-like) bat viruses, therefore bats could be the possible primary reservoir. The intermediate source of origin and transfer to humans is not known, however, the rapid human to human transfer has been confirmed widely. There is no clinically approved antiviral drug or vaccine available to be used against COVID-19. However, few broad-spectrum antiviral drugs have been evaluated against COVID-19 in clinical trials, resulted in clinical recovery. In the current review, we summarize and comparatively analyze the emergence and pathogenicity of COVID-19 infection and previous human coronaviruses severe acute respiratory syndrome coronavirus (SARS-CoV) and middle east respiratory syndrome coronavirus (MERS-CoV). We also discuss the approaches for developing effective vaccines and therapeutic combinations to cope with this viral outbreak.
Answer:
Coronaviruses the most spreading virus nowadaysare named for the crown-like spikes on their surface. There are four main sub-groupings of coronaviruses, known as alpha, beta, gamma, and delta.Human coronaviruses were first identified in the mid-1960s.
The seven coronaviruses that can infect people are:
Common human coronaviruses
229E (alpha coronavirus)
NL63 (alpha coronavirus)
OC43 (beta coronavirus)
HKU1 (beta coronavirus)
Characteristics of human Corona:
The virus that cause COVID-19 spreads primarily through droplets generated when an infected person coughs, sneezes or speaks. You can also become infected by touching a contaminated surface and then touching your eyes, nose or mouth before washing your hands.Since it is a respiratory virus, we know that it infects the respiratory tract (the nose and lungs), causing coughing, shortness of breath, and difficulty breathing. Some patients with coronavirus disease 2019 (COVID-19), the disease caused by the novel coronavirus, have reported loss of smell or taste, possibly due to the virus infecting and damaging nerve cells in the nose and mouth
patients also have some symptoms you wouldn’t readily link to a respiratory infection. The virus uses a certain human cell receptor, called angiotensin converting enzyme 2 (ACE2), to enter into the cell. The ACE2 receptor is expressed on cells throughout your body, in the lungs, nose, blood vessels, heart, intestines, and some parts of the brain.
The most common symptoms of Human Corona are fever, dry cough, and tiredness. Other symptoms that are less common and may affect some patients include loss of taste or smell, aches and pains, headache, sore throat, nasal congestion, red eyes, diarrhoea, or a skin rash.
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