Human papillomavirus infection
By: Alfredo Antonetti, Group 2
Symptoms and Causes
Many people with HPV don't develop any symptoms of the virus but they can still affect others through sexual contact. Symptoms may include warts on the genitals or surrounding skin. Cervical cancer usually does not have symptoms until it is quite advanced, very serious and hard to treat. The virus is caused when the virus enters your body through a cut, abrasion, or small tear in your skin. It is primarily transferred by skin-to-skin contact. Most of the time, HPV is spread through sexual activity and genital contact.
Immune Cells Involved in Immune Response
Can’t be cured, but can be treated
Warts may go away on their own
Treatment focuses on removing the warts.
- A vaccine that prevents the HPV strains most likely to cause genital warts and cervical cancer is recommended for boys and girls.
- Bivalent vaccine (Cervarix) which helps prevent warts and with some of the cancer
How HPV Replicates
The lysogentic cycle is where , the virus mix their genetic instructions into the host cell's genetic instructions. When the host cell reproduces, the viral genetic instructions get copied into the host cell's offspring. The host cells may undergo many rounds of reproduction, and then some environmental or predetermined genetic signal will stir the "sleeping" viral instructions. The viral genetic instructions will then take over the host's machinery and make new viruses as described above.