THE MOLECULAR BASIS OF INHERITANCE
VIRUSES AND PRIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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rapid onset
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short duration
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continue for years/ lifetime
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may not be symptomatic
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immune system gradually eliminates virus
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Detailed explanation-1: -Acute infections begin with an incubation period, during which the genomes replicate and the host innate responses are initiated. The cytokines produced early in infection lead to classical symptoms of an acute infection: aches, pains, fever, malaise, and nausea.
Detailed explanation-2: -Humans have three types of immunity-innate, adaptive, and passive: Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection. For example, the skin acts as a barrier to block germs from entering the body.
Detailed explanation-3: -An acute viral infection is characterized by sudden or rapid onset of disease that may be fatal. Viral clearance during acute infection correlates with rapid induction of innate immunity, especially induction of ISGs, and subsequent induction of adaptive immune responses (Heim and Thimme, 2014).
Detailed explanation-4: -There are four characteristics of adaptive immunity: antigenic specificity, diversity, immunologic memory and ability to distinguish between self and non-self. An immune response involves Lymphocytes (B-cells and T-cells) and antigen presenting cells (macrophages, B-cells, and dendritic cells).