Cells infected with latent viruses may exihibit new properties. What is one exam

Question

Cells infected with latent viruses may exihibit new properties. What is one example of a disease caused by latent virus? What new property does the virus confer to host cell? How can the HPV vaccine help to reduce the prevalence of cervical cancer. Why is the HPV vaccine only useful if administered to pre sexually active youth. Cells infected with latent viruses may exihibit new properties. What is one example of a disease caused by latent virus? What new property does the virus confer to host cell? How can the HPV vaccine help to reduce the prevalence of cervical cancer. Why is the HPV vaccine only useful if administered to pre sexually active youth. How can the HPV vaccine help to reduce the prevalence of cervical cancer. Why is the HPV vaccine only useful if administered to pre sexually active youth.

Explanation / Answer

1. Herpes simplex virus - Cold sores
Varicella zoster virus - Chicken pox

1.B. Latent infection cells conatins the virus genes into the host genome. The integrated DNA codes for some toxins molecules to host cells or it mutate the normal protooncogenes in the cells and converted into oncogenes.This leads to cancer.

2. HPV vaccines stimulate the body to produce antibodies against vaccine. If any HPV virus enter in to body then Ab bind to the virus and prevent it from infecting cells. So, vaccines further reduce the new infection of virus in host it indirectly control the causes of cervical cancer.

The vaccine works best when given at a younger age. Because at younger age more antibodies are produced to the vaccine than those aged in their late teens. This shows they are better protected if they are exposed to HPV in the future.

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