section 25-3 review Flashcards
what is an inactivated virus
does not replicate in a host system
what is an attenuated virus
has been genetically altered so that they are incapable of causing disease under normal circumstances
what is an acyclovir
antiviral agent used against herpes simplex and chickenpox
azidothymidine
antiviral agent that inhibits the reverse transcriptase of retroviruses, such as HIV
what is protease inhibitor
a class of drugs it interferes with the synthesis of viral capsids during viral replication
one viral disease that can occur in childhood and then reappear in adult hood in a more serious form is
chickenpox
the most successful approach to controlling viral diseases has been the use of
attenuated virus vaccines
which of the following viral diseases is now considered to be eradicated
smallpox
an emerging virus is one that arises
when isolated habitats are developed
the hepatitis B virus has been linked to
liver cancer
name four viruses that can cause disease that are often fatal
HIV, AIDS, Ebola, Rabies
explain the relationship between shingles and chickenpox
chickenpox is a highly contagious viral disease. if all of the chicken pox virus is not destroyed. it can persist in the nerve cells as a provirus and cause a disease called shingles later during adulthood
name two methods, other than vaccination, for controlling viral diseases
antiviral drugs
quarantine
how are some viruses thought to cause cancer
cancer is linked to genes within cells. the cancer genes may be triggered by certain lysogenic viruses
explain how an emerging virus might suddenly appear in a human population
the viruses exist in isolated habitats but when humans begin developing on isolated habitats, the virus infects humans
