Özet:

Coronaviruses cause diarrhea in cows and pigs and upper respiratory diseases in chickens. The genetic material (genome) it contains consists of single-stranded RNA with positive polarity. They are viruses with the largest RNA genome ever detected, with a length greater than 30 kilobases. The most prominent feature of the virus, which is 125 nanometers in size, is its stick-like protrusions around it. With this feature, it may have taken the name coronavirus because it resembles the crown sphere of the sun (Latin: corona) under the microscope Fehr, A. R. & Perlman, S (2015, S: 21). Coronaviruses were discovered in the 1960s Fehr, A. R. & Perlman, S (2015, S: 20). The first discovered viruses include infectious bronchitis virus seen in chickens and two types of viruses, which are taken from the nasal cavities of human patients with symptoms of colds, and named as human coronavirus 229E and OC43 Geller C, Varbanov M, Duval RE (2012, S: 37).

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