Question

article on corona virus​

Answer 1

Answer:

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment. Older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness.The best way to prevent and slow down transmission is to be well informed about the COVID-19 virus, the disease it causes and how it spreads. Protect yourself and others from infection by washing your hands or using an alcohol based rub frequently and not touching your face. The COVID-19 virus spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes, so it’s important that you also practice respiratory etiquette

Answer 2

Answer:

Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold (which is also caused by other viruses, predominantly rhinoviruses), while more lethal varieties can cause SARS, MERS, and COVID-19. In cows and pigs they cause diarrhea, while in mice they cause hepatitis and encephalomyelitis.

Orthocoronavirinae

Coronaviruses 004 lores.jpg

Transmission electron micrograph of Avian coronavirus

Illustration of a SARS-CoV-2 virion

Illustration of a coronavirus[2]

Red: spike proteins (S)

Grey: lipid bilayer envelope

Yellow: envelope proteins (E)

Orange: membrane proteins (M)

Virus classificatione

(unranked):

Virus

Realm:

Riboviria

Kingdom:

Orthornavirae

Phylum:

Pisuviricota

Class:

Pisoniviricetes

Order:

Nidovirales

Family:

Coronaviridae

Subfamily:

Orthocoronavirinae

Genera[1]

Alphacoronavirus

Betacoronavirus

Gammacoronavirus

Deltacoronavirus

Synonyms[3][4]

Coronavirinae

Coronaviruses constitute the subfamily Orthocoronavirinae, in the family Coronaviridae, order Nidovirales, and realm Riboviria.[5][4] They are enveloped viruses with a positive-sense single-stranded RNA genome and a nucleocapsid of helical symmetry.[6] The genome size of coronaviruses ranges from approximately 26 to 32 kilobases, one of the largest among RNA viruses.[7] They have characteristic club-shaped spikes that project from their surface, which in electron micrographs create an image reminiscent of the solar corona, from which their name derives.[8]