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Viruses are obligate parasites of cellular hosts and therefore are constantly confronted with the host immune system. Evasion of innate immunity mechanisms by viruses is paramount for the establishment of their infection. The complement system can directly neutralize viruses and also augments adaptive immune responses against them. This system, therefore, is central to host innate immune surveillance,...
The complement system surveillance in the host is effective in controlling viral propagation. Consequently, to subvert this effector mechanism, viruses have developed a series of adaptations. One among these is encoding mimics of host regulators of complement activation (RCA) which help viruses to avoid being labeled as ‘foreign’ and protect them from complement-mediated neutralization and complement-enhanced...
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