Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase IV, Randomized, Observer-Blind, Placebo-Controlled, Multi-Centre Study to Evaluate the Efficacy, Safety and Tolerability of CSL Limited's Influenza Virus Vaccine in Adults Aged ≥ 18 to < 65 Years.
Brief Summary: This study will assess the Efficacy, Safety and Tolerability profile of CSL's Influenza Vaccine administered intramuscularly against laboratory-confirmed influenza illness in a population defined as being not at risk of severe complications following influenza infection.


Options:
A: Inclusion Criteria:

Male and female subjects who

* are 18 to 49 years of age, inclusive, on the day of screening
* have an understanding of the study, agree to its provisions and give written informed consent prior to study entry
* If female and capable of bearing children - have a negative urine pregnancy test result within 24 hours of the vaccination on Study Day 0 and agree to employ adequate birth control measures. For the purposes of this study adequate birth control measures incorporate two types of the following FDA approved birth control measures through 60 days after the vaccination: hormonal types of birth control (such as implants, birth control pills, patches or other methods) or an intrauterine device, OR an additional barrier type of birth control measure (i.e., condoms, diaphragms, cervical caps, etc.).

Exclusion Criteria:

Subjects who have any of the risk factors for complications from influenza infection as defined by the Centers for Disease Control and Prevention (CDC):

* pregnancy
* chronic disorders of the pulmonary or cardiovascular system including asthma (hypertension is not considered a high risk condition)
* chronic renal disorders
* chronic hepatic disorders
* chronic hematological disorders
* chronic metabolic disorder (including diabetes mellitus)
* immunosuppression (including immunosuppression caused by medications or HIV)
* any condition that can compromise respiratory function or the handling of respiratory secretions or that can increase risk for aspiration (e.g., cognitive dysfunction, spinal cord injuries, seizure disorders or other neuromuscular disorders)
* residence in a nursing home or other chronic care facility that houses persons of any age who have chronic medical conditions
* household contact with children aged 0 to 59 months or of someone who is included in the risk categories listed above
* employment as a health care worker

Subjects are also excluded if they

* are unable to lead an independent life as a result of either physical or mental handicap
* have a history of severe allergic reactions or anaphylaxis
* have an oral temperature of \>= 99.5° F (37.5°C) on the day of vaccination in this study. \[NOTE: Subjects meeting this exclusion criterion may be rescheduled for vaccination and study entry at a later date provided: 1.) oral temperature has decreased to \< 99.5°F (37.5°C) on rescheduled date, 2.) all other inclusion/exclusion criteria are met, 3.) the rescheduled date is no more than 14 days past the initial screening date, 4.) the study site is still enrolling subjects\]
* have a rash or dermatologic condition or tattoos which may interfere with injection site reaction rating
* have received a blood transfusion or immunoglobulins within 90 days of study entry
* have received a live vaccine within 4 weeks or inactivated vaccine within 2 weeks of study entry
* have previously been vaccinated against influenza for the 2007/2008 northern hemisphere influenza season
* have functional or surgical asplenia
* have a known or suspected problem with alcohol or drug abuse
* were administered an investigational drug within six weeks prior to study entry or are concurrently participating in a clinical study that includes the administration of an investigational product
* are a member of the team conducting this study or are in a dependent relationship with the study investigator. Dependent relationships include close relatives (i.e., children, spouse/partner, siblings, parents) as well as employees of the investigator.
B: Inclusion Criteria:

* Healthy males and females aged ≥ 18 to \< 65 years at the time of vaccination
* Non pregnant/ non lactating females

Exclusion Criteria:

* Hypersensitivity to influenza vaccine or allergy to any components of the Study Vaccines
* Vaccination against influenza in the previous 6 months
* Acute clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality
* Known history of Guillain-Barré Syndrome;
* Clinical signs of active infection and/or an oral temperature of ≥ 37.8 oC.
* History of neurological disorders or seizures
* Confirmed or suspected immunosuppressive condition or a previously diagnosed immunodeficiency disorder
* Current or recent immunosuppressive or immunomodulative therapy, including systemic corticosteroids
* Administration of immunoglobulins and/or any blood products;
* Participation in a clinical trial or use of an investigational compound;
* Vaccination with a registered vaccine within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior;
* Participants indicated to receive an influenza vaccine on an annual basis according to the local public health recommendations.
C: Inclusion Criteria:

* Written informed consent, and assent where appropriate, obtained from the subject/from the subject's parent(s)/ Legally Acceptable Representative(s) (LAR).
* A male or female subject vaccinated with a first dose of GSK Biologicals' H1N1 pandemic influenza vaccine
* shortly (\<24h) before being recruited in the study, and
* within a GP practice participating in the study and where the subject is registered.
* Subjects who the Investigator believes that they and/or their parent(s)/LAR can and will comply with the requirements of the protocol

Exclusion Criteria:

* Subjects already vaccinated with any other H1N1 pandemic vaccine before study enrolment.
* Child in care
D: Inclusion Criteria:

* Male or female aged 18 and older, inclusive, at the time of providing informed consent.
* Females of child bearing potential (i.e., ovulating, pre-menopausal, not surgically sterile) must be abstinent or be willing to use a medically accepted contraceptive regimen for the duration of the study. Females of child bearing potential must return a negative urine pregnancy test result at enrolment and prior to each study vaccination.

Exclusion Criteria:

* Known hypersensitivity to a previous dose of influenza virus vaccine or allergy to eggs, chicken protein, thimerosal, neomycin, polymyxin, or any components of the Study Vaccine.

Answer: B