write a notes on covid 19 essay for 100 words
Answers
Answer:
please mark me as a branlist for give more effort
Explanation:
Some mutated species of the Coronavirus family, which is commonly accepted as a disease agent in animals, can also cause diseases in humans. We have witnessed examples of this as SARS in 2002 and MERS in 2011, both of them being severe lower respiratory tract infections. The causative pathogen of the disease, which has become a pandemic (a worldwide epidemic) today, is named the SARS-CoV2 virus, and the disease it causes is COVID-19. It causes serious lower respiratory failure, as in previous examples, and may damage the central nervous system in the early period, unlike the previous ones.1 Like other members of the Coronavirus family, this virus has a sheath called the envelope in its fat structure, which has spiky protrusions of its protein structure on its outer surface. Because it looks like a “crown” due to these spiky protrusions, it is referred to as “corona”, meaning crown (figure). The spiky proteins of the SARS-CoV2 virus differ from the SARS virus by 2% and provide much better adhesion to human cells.2 The virus is a non-living pathogen agent with its nucleic acid chain (a kind of helical amino acid chain that carries genetic codes) in the envelope. The virus can replicate itself, cause damage, and spread only when it infiltrates into another cell. For the SARS-Cov2 virus to infiltrate into cells, its envelope structure must be strong. The virus becomes harmless as oil solvents such as soap or detergent damage the envelope structure. It can remain infectious for only a few days if it cannot infiltrate into the cell provided that its envelope structure is strong. The exposed virus is deformed over time and becomes ineffective. When a sufficient number of SARS-CoV2 enters the human body, the infection begins once the virus clings onto the surface epithelium (a skin-like but much thinner, a single layer of cell covering the inner cavities of our body) and then infiltrates the cell.3
Coronavirus causing Covid-19 Pandemic
Figure 1: Depiction of the envelope structure of the Coronavirus with its spiky protrusions resembling a crown.
Modes of Transmission
It is proven that the virus is transmitted by airborne droplet infection and through contact with infected surfaces. Furthermore, although it has been demonstrated that the live virus has excreted from the human body through feces within 12 days of the onset of the disease, it has not been proven to be transmitted that way.3 The live virus has not been demonstrated in blood and urine and does not exhibit infectious properties. The disease is not transmitted by blood and blood products, or by mosquitoes or other bloodsucking parasites.4 Yet it is transmitted from person to person, and infectiousness begins even when the person who is sick has not yet developed symptoms.5 There is no consensus on the effects of climate and weather conditions on the contagiousness of the disease. There are scientific studies indicating that increased air temperature and humidity reduce the speed of propagation of the disease.6 However, some authors report that this would not be effective.4
Answer:
it is a festival where are people sit inside the house. and switch on lights and clap hands outside our house. even students enjoy during this festival because they are in home. they will not go to school. Mom's cook different food items and learn even more to cook. And Daddy's send time with mom and children . And this festival was started in 2019. and still we are celebrating this.
thank you....