Why cant medicines which deactivate the RNA strand of the virus be prescribed to the affected person?

Asked by hridhyavijay | 29th Nov, 2018, 09:51: PM

Expert Answer:

  • Viruses reproduce through a host cell, which they do by attaching their surface proteins to the cell's membrane and injecting their genetic material, DNA or RNA into the cell.
  • The new viruses then leave the cell and spread to other parts of the host organism.
  • The human immune system develops memory from these viral encounters and develops strategies to prevent reinfection.
  • And so, the next time the same virus comes to a host cell, it may find that it is no longer able to attach to the cell's surface membrane.
  • So to survive, viruses adapt or evolve, changing its surface proteins enough to trick the host cell into allowing it to attach.
  • It is this ability of viruses to mutate because of which a single antiviral medicine which deactivates the RNA strand of the virus is not found to be effective to eradicate the viral infection. 

Answered by Sheetal Kolte | 30th Nov, 2018, 12:45: PM