BASICS OF ANTIVALS
This term describes medicines used to treat viral infections.
What are antiviral drugs?
When a virus no longer responds to antiviral treatment.
what is drug resistance
After entry, the virus must release its nucleic acid in a process called this
what is uncaring
LIST THREE (3) MAJOR CLASSIFICATION OF ANTIVIRALS.
What are:
This is the genetic material viruses can be made of.
What is DNA or RNA.
HIV primarily infects this type of immune cell.
What are CD4 T-cells?
These drugs prevent cleavage of viral proteins into functional units.
What are protease inhibitors?
These inhibitors prevent new virus particles from leaving infected cells.
What are neuraminidase inhibitors?
Steps in the Viral Replication Cycle
Attachment (Adsorption)
Virus binds to specific receptors on the host cell surface.
Penetration (Entry)
Virus enters the host cell by fusion or endocytosis.
Uncoating
Viral capsid breaks down; viral genome is released into the host cell.
Replication (Genome Synthesis)
Viral DNA/RNA is copied using host or viral enzymes.
Transcription & Translation (Protein Synthesis)
Viral proteins (structural and enzymatic) are produced.
Assembly (Maturation)
Newly synthesized genomes and proteins assemble into new virions.
Release
New viruses exit the host cell (budding or cell lysis) and infect new cells.
HIV uses this enzyme during replication to insert viral DNA into host DNA.
What is integrase?
This happens when viruses undergo mutations that reduce drug effectiveness.
What is antiviral resistance?
This barrier limits how well certain antivirals reach the brain.
What is the blood–brain barrier?
ASK THE PERSON BESIDE YOU SOMETHING THAT THEY HAVE LEARNT
WHAT IS....
Did you learn something new ?
what is yes
example of a drug used to treat herpes simplex virus
Acyclovir
Valacyclovir (a prodrug of acyclovir, better oral absorption)
Famciclovir