Please select the eligibility criteria that correspond to the clinical trial below.
Title: Open-label Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' Herpes Zoster Vaccine GSK1437173A in Adults Aged 50 Years or Older
Brief Summary: The purpose of this study is to assess the safety and immunogenicity of the GSK Biologicals' HZ vaccine 1437173A administered on either a 0,2-; 0,6- or 0,12-month schedule in adults aged 50 years or above, as the immunogenicity of the HZ vaccine administered at intervals longer than two months is not known.


Options:
A: Inclusion Criteria:

* Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol.
* A male or female aged 50 years or older at the time of the first vaccination.
* Written informed consent obtained from the subject.
* Female subjects of non-childbearing potential may be enrolled in the study.

  * Non-childbearing potential is defined as pre-menarche, current tubal ligation, hysterectomy, ovariectomy or post-menopause.
* Female subjects of childbearing potential may be enrolled in the study, if the subject:

  * has practiced adequate contraception for 30 days prior to vaccination, and
  * has a negative pregnancy test on the day of vaccination, and
  * has agreed to continue adequate contraception during the entire treatment period and for two months after completion of the vaccination series.

Exclusion Criteria:

* Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period.
* Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. For corticosteroids, a prednisone dose of \< 20 mg/day, or equivalent, is allowed. Inhaled, topical and intra-articular corticosteroids are allowed.
* Administration or planned administration of a live vaccine in the period starting 30 days before and ending 30 days after either dose of study vaccine.
* Administration or planned administration of a non-replicating vaccine within eight days prior to or within 14 days after either dose of study vaccine.
* Administration of long-acting immune-modifying drugs (e.g. infliximab) within six months prior to the first vaccine dose or expected administration at any time during the study period.
* Previous vaccination against varicella or HZ (either registered product or participation in a previous vaccine study).
* Planned administration during the study of an HZ or varicella vaccine (including an investigational or non-registered vaccine) other than the study vaccine.
* History of HZ.
* History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccine(s).
* Any confirmed or suspected immunosuppressive or immunodeficient condition resulting from disease (e.g. malignancy, human immunodeficiency virus \[HIV\] infection) or immunosuppressive/cytotoxic therapy (e.g. medications used during cancer chemotherapy, organ transplantation or to treat autoimmune disorders).
* Acute disease and/or fever at the time of enrolment.

  * Fever is defined as temperature ≥ 37.5°C (99.5°F) for oral, axillary or tympanic route, or ≥ 38.0°C (100.4°F) for rectal route. The preferred route for recording temperature in this study will be oral.
  * Subjects with a minor illness (such as mild diarrhoea, mild upper respiratory infection) without fever may be enrolled at the discretion of the investigator.
* Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
* Significant underlying illness that, in the opinion of the investigator, would be expected to prevent completion of the study.
* Any other condition that, in the opinion of the investigator, might interfere with the evaluations required by the study.
* Pregnant or lactating female.
* Female planning to become pregnant during the entire treatment period and for two months after completion of the vaccination series, or planning to discontinue contraceptive precautions (if of childbearing potential).
B: Inclusion Criteria:

* Has history of varicella or residence in a VZV-endemic area for ≥30 years
* Is male, female not of reproductive potential, or female of reproductive potential and has a negative pregnancy test and agrees to avoid becoming pregnant throughout the study

Exclusion Criteria:

* Has history of hypersensitivity to any vaccine component
* Has previously received any varicella or zoster vaccine
* Has received an influenza vaccine for the 2015-16 season
* Has history of Herpes zoster
* Has received immunoglobulin, monoclonal antibodies, or any blood products within 5 months before study vaccination
* Is pregnant or breastfeeding, or expecting to conceive during the study
* Has used immunosuppressant therapy
* Has known or suspected immune dysfunction
* Has experienced Guillain-Barré syndrome within 6 weeks
* Has severe thrombocytopenia or any other coagulation disorder
C: Inclusion Criteria:

* Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol.
* A male or female ≥ 65 years of age at the time of the first vaccination.
* Written informed consent obtained from the subject prior to performing any study specific procedure.

For the No prev-Zvax group only:

• No previous vaccination with Zostavax.

For the Prev-Zvax group only:

• Previous vaccination with Zostavax ≥ 5 calendar years earlier.

* Documentation indicating the date of previous Zostavax vaccination will be required.

Exclusion Criteria:

* Previous vaccination with Zostavax \< 5 calendar years earlier and/or anyone that ever received more than a single dose of Zostavax.
* Previous vaccination against VZV, administration of HZ/su vaccine or any other investigational or non-registered HZ vaccine (except Zostavax for the Prev-Zvax group).
* Use of any investigational or non-registered product other than the study vaccine during the period starting 30 days before the first dose of study vaccine, or planned use during the study period.
* Chronic administration (defined as \> 14 consecutive days) of immunosuppressants or other immune-modifying drugs in the period starting 6 months prior to the first dose of vaccine. (For corticosteroids, a prednisone dose of \< 20 mg/day, or equivalent, is allowed.) Inhaled, topical and intra-articular corticosteroids are allowed.
* Administration of long-acting immune-modifying drugs (e.g., infliximab) in the period starting 6 months prior to the first vaccine dose or expected administration at any time during the study period.
* Administration or planned administration of a live vaccine in the period starting 30 days before the first dose of study vaccine and ending 30 days after the last dose of study vaccine, or, administration or planned administration of a non-replicating vaccine in the period starting 8 days prior to and ending 14 days after either dose of study vaccine.
* Current participation in or planned concurrent participation in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product.
* Planned administration of an HZ vaccine (including an investigational or non-registered vaccine) other than the study vaccine during the entire study.
* History of HZ or any suspected HZ between the screening visit and Visit 1.
* History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccine/product.
* Any confirmed or suspected immunosuppressive or immunodeficient condition resulting from disease (e.g., malignancy, human immunodeficiency virus \[HIV\] infection) or immunosuppressive/cytotoxic therapy (e.g., medications used during cancer chemotherapy, organ transplantation or to treat autoimmune disorders).
* Acute disease and/or fever at the time of enrolment.

  * Fever is defined as temperature ≥ 37.5°C (99.5°F) by oral route, axillary or tympanic setting, or ≥ 38.0°C/100.4°F on rectal setting. The recommended route for recording temperature in this study will be oral.
  * Subjects with a minor illness (such as mild diarrhea, mild upper respiratory infection) without fever may be enrolled at the discretion of the investigator.
* Administration of immunoglobulins and/or any blood products in the period starting 3 months preceding the first dose of study vaccine or planned administration during the study period.
* Significant underlying illness that, in the opinion of the investigator, would be expected to prevent completion of the study.
* Any other condition that, in the opinion of the investigator, might interfere with the evaluations required by the study.
* Any condition which, in the judgment of the investigator, would make intramuscular (IM) injection unsafe.
D: Inclusion Criteria:

* Healthy adult over aged 50 years
* Menopause females or females who are confirmed to be negative in a preganacy test on the day of screening and agree to practice birth control for 6 weeks after signing informed concent

Exclusion Criteria:

* Those with hypersensitivity to any component of IP(Investigational Product), such as gelatin
* Those with a history of hypersensitivity to vaccination, such as Guillain-Barre syndrome
* Those who have received antiviral agents witin 1 month prior to IP vaccination (topical antiviral agent is allowed)
* Those who have previously received herpes zoster vaccine
* Those who have a history of herpes zoster
* Those with congenital or acquired immunodeficiency
* Those with active untreated tuberculosis
* Those who have received blood products or immunoglobulin within 3 months prior to IP(Investigational Products) vaccination
* Those who have received other IPs(Investigational Products) in another clinical study witin 4 weeks prior to IP vaccination in this study

Answer: A