Coronaviruses are enveloped (+) RNA viruses that are the pathogens responsible f

Question

Coronaviruses are enveloped (+) RNA viruses that are the pathogens responsible for many common colds as well as more seriously conditions such as severe acute respiratory syndrome. As part of their infectious cycle a viral spike protein as well as other viral structural protein are made and inserted into the ER. This processes results in ER stress and triggers a host unfolded protein response (UPR). The host UPR has three main signaling pathways that can result in a number of host defense including induction of interferon and apoptosis. Which of the following best describes this type of host defense? choices are

a. Adaptive immune response.

b. Anatomical and chemical barriers

c. Innate immunity

d. Intrinsic

e. Acquired immunity

Explanation / Answer

Anatomical and chemical barrier and intrinsic defence are not so effective. Best method of defence for coronaviruses is innate immunity. Adaptive immunity also play important roles in defence. These viruses decreases the activity of interferon.

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