NEST2020BiologyHuman Health and Diseases
SARS-CoV-2 is a novel corona virus that causes COVID-19. The disease, in most cases, starts with mild symptoms such as fever and cough that may aggravate to pneumonia and severe acute respiratory distress (breathing difficulty). In majority of the infected, the disease is limited to only mild symptoms and the virus is cleared (negative in viral diagnostic test) in 6-8 days after symptoms appear. In such cases, the mo
Options
- ACellular barriers such as macrophages and natural killer cells.
- BSpecific antibodies against the virus developed by humoral immune response.
- CPhysiological barriers such as saliva and tears, and physical barriers such as mucus in nasal passage.
- DCytokine response such as interferon production.
Correct answer
D. Cytokine response such as interferon production.
Step-by-step solution
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