Background: Hepatitis viruses can develop into a chronic viral infection that leads to liver cancer. Infection by human T-lymphotropic virus can lead to tropical spastic paraparesis and adult T-cell leukaemia. Human papillomaviruses are an established cause of cancers of cervix, skin, anus, and penis. Within the Herpesviridae, Kaposi's sarcoma-associated herpesvirus causes Kaposi's sarcoma and body-cavity lymphoma, and Epstein–Barr virus causes Burkitt's lymphoma, Hodgkin's lymphoma, B lymphoproliferative disorder, and nasopharyngeal carcinoma. Merkel cell polyomavirus closely related to SV40 and mouse polyomaviruses that have been used as animal models for cancer viruses for over 50 years.

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was at risk of developing  Kaposi's sarcoma?
Answer: Barry

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was not at risk of developing Kaposi's sarcoma?
Answer: Daniel

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was not at risk of developing body-cavity lymphoma?
Answer: Daniel

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was at risk of developing body-cavity lymphoma?
Answer: Barry

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was at risk of developing Burkitt's lymphoma?
Answer: Daniel

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was not at risk of developing Burkitt's lymphoma?
Answer: Barry

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was not at risk of developing Hodgkin's lymphoma?
Answer: Barry

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was at risk of developing Hodgkin's lymphoma?
Answer: Daniel

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was at risk of developing B lymphoproliferative disorder?
Answer: Daniel

Situation: Two patients were hospitalized for different diseases.  Barry was diagnosed with Kaposi's sarcoma-associated herpesvirus, while Daniel was diagnosed with Epstein–Barr virus infection.

Question: Which patient was not at risk of developing B lymphoproliferative disorder?
Answer: Barry

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a greater chance of  developing Kaposi's sarcoma?
Answer: Tim

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a lower chance of  developing Kaposi's sarcoma?
Answer: Nate

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a lower chance of developing body-cavity lymphoma?
Answer: Nate

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a higher chance of developing body-cavity lymphoma?
Answer: Tim

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a higher chance of developing Burkitt's lymphoma?
Answer: Nate

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a lower chance of developing Burkitt's lymphoma?
Answer: Tim

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a lower chance of developing Hodgkin's lymphoma?
Answer: Tim

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a higher chance of developing Hodgkin's lymphoma?
Answer: Nate

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a higher chance of developing B lymphoproliferative disorder?
Answer: Nate

Situation: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the Epstein–Barr virus.

Question: Which cousin has a lower chance of developing B lymphoproliferative disorder?
Answer: Tim

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read more about cancers of the cervix?
Answer: Dean

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read less about cancers of the cervix?
Answer: Brady

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read less about cancers of the skin?
Answer: Brady

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read more about cancers of the skin?
Answer: Dean

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read more about cancers of the anus?
Answer: Dean

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read less about cancers of the anus?
Answer: Brady

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read less about cancers of the penis?
Answer: Brady

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read more about cancers of the penis?
Answer: Dean

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read more about liver cancer?
Answer: Brady

Situation: Two medical students had to study about viruses that cause cancers in humans. Brady studied about hepatitis viruses, while Dean studied about human papillomaviruses and Herpesviridae.

Question: Which student read less about liver cancer?
Answer: Dean

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother was more at risk of developing liver cancer?
Answer: Chris

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother had a lower risk of developing liver cancer?
Answer: Tom

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother was more at risk of developing skin cancer?
Answer: Tom

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother was less at risk of developing skin cancer?
Answer: Chris

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother was less at risk of developing anal cancer?
Answer: Chris

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother was more at risk of developing anal cancer?
Answer: Tom

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother was more at risk of developing penis cancer?
Answer: Tom

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother had a lower risk of developing penis cancer?
Answer: Chris

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother had a higher chance of developing a chronic viral infection?
Answer: Chris

Situation: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis.

Question: Which brother had a lower chance of developing a chronic viral infection?
Answer: Tom

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a higher risk of developing cervical cancer?
Answer: Jenny

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had no risk of developing cervical cancer?
Answer: Josh

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a lower risk of developing skin cancer?
Answer: Josh

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a higher risk of developing skin cancer?
Answer: Jenny

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a higher risk of developing penis cancer?
Answer: Josh

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had no risk of developing penis cancer?
Answer: Jenny

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a higher risk of developing Burkitt's lymphoma?
Answer: Josh

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a lower risk of developing Burkitt's lymphoma?
Answer: Jenny

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a lower risk of developing Hodgkin's lymphoma?
Answer: Jenny

Situation: The Jones family had a history of chronic viral infections. Jenny got human papillomavirus, while her brother Josh got infected with the Epstein–Barr virus. They were both under treatment.

Question: Which sibling had a higher risk of developing Hodgkin's lymphoma?
Answer: Josh