Please select the eligibility criteria that correspond to the clinical trial below.
Title: An Open-label, Randomised, Comparative, Multi-centre Study of the Immunogenicity and Safety of the Concomitant Use of a Live Pentavalent Rotavirus Vaccine (RotaTeq®) and a Meningococcal Group C Conjugate (MCC) Vaccine in Healthy Infants
Brief Summary: Primary objective:

To check if RotaTeq® can be administered concomitantly with meningococcal Group C vaccine without impairing the efficacy of MCC vaccine. The hypothesis tested is that the seroprotection rate for MMC at 28 days after the second MCC vaccination with concomitant administration of RotaTeq® is non-inferior to that without non-concomitant (sequential) administration of RotaTeq®.


Options:
A: Inclusion criteria: Healthy infants between 5 and 10 weeks of age at first study vaccination with (after the 2002 RV season) confirmed negative HIV status of the subject's mother during pregnancy or thereafter. Exclusion criteria: History of allergic disease, any confirmed or suspected immunosuppressive or immunodeficient condition, clinically significant history of chronic gastrointestinal disease or other serious medical condition as determined by the investigator or had not received treatment prohibited by the protocol.
B: Inclusion Criteria:

* Subjects who the investigator believes that their parents/guardians can and will comply with the requirements of the protocol should be enrolled in the study.
* A male or female child between, and including, 5 and 10 weeks of age at the time of the first study vaccination.
* Written informed consent obtained from the parent or guardian of the subject who is of legal age
* Healthy subjects as established by medical history and clinical examination before entering into the study.
* In South Africa, birth weight \> 2000 grams or if weight unknown, gestation period \> 36 weeks.

Exclusion Criteria:

* Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
* Concurrently participating 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 a vaccine not foreseen by the study protocol within 14 days before each dose of study vaccine(s) and ending 14 days after.
* Chronic administration (defined as more than 14 days) of immunosuppressants since birth.
* History of use of experimental rotavirus vaccine.
* Previous routine vaccination except Bacille Calmette-Guérin (BCG), hepatitis B virus (HBV) and oral poliovirus (OPV) vaccination at birth
* Any clinically significant history of chronic gastrointestinal disease including any uncorrected congenital malformation of the gastrointestinal tract, intussusception or other medical condition determined to be serious by the investigator.
* Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination
* History of allergic disease or reaction likely to be exacerbated by any component of the vaccine.
* Acute disease at the time of enrolment.
* Gastroenteritis within 7 days preceding the first study vaccine administration
* Previous confirmed occurrence of rotavirus gastroenteritis (RV GE).
* A family history of congenital or hereditary immunodeficiency.
* Administration of immunoglobulins and/or blood products since birth or planned administration during the study period.
* History of any neurologic disorders or seizures.
* Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
C: Inclusion Criteria:

1. At least one parent(s) or legally acceptable representative's consent for participation and are able to understand study procedures
2. Subjects aged 6 to 7 weeks at recruitment
3. No plans to move in the next 4 months
4. Weight for age not ≤ -3 SD of WHO child growth standards

Exclusion Criteria:

1. Infant not breastfed
2. Administration of rotavirus vaccine in the past
3. Known immunodeficiency disease, including HIV infection in the subject or the mother
4. Known chronic enteric disease
5. Diarrhea on the day of enrollment (temporary exclusion)
6. Any illness requiring hospitalization (temporary exclusion)
7. Any other conditions which in the judgment of the investigator warrant exclusion (e.g. no exclusion criteria but seems 'ill', investigators suspects neglect)
D: Inclusion Criteria:

* Healthy infants, aged from 6 weeks through full 7 weeks,
* Consent form signed by at least one parent or by the legal representative properly informed about the study,
* Parent(s) / legal representative able to understand the protocol requirements and to fill in the Diary Card.

Exclusion Criteria:

* History of congenital abdominal disorders, congenital malformation of the gastrointestinal tract that could predispose to intussusception, or abdominal surgery,
* Congenital fructose intolerance, glucose-galactose malabsorption or sucrase-isomaltase insufficiency,
* Known or suspected impairment of immunological function,
* Known hypersensitivity to any component of RotaTeq® (e.g. sucrose) or of NeisVac-C® (including tetanus toxoid),
* Prior administration of any rotavirus vaccine,
* Prior administration of any vaccine within the 28 days prior to randomisation,
* Fever (rectal temperature ≥38.1°C) and/or acute diarrhoea and/or vomiting at randomisation,
* History of known prior rotavirus gastroenteritis, chronic diarrhoea, or failure to thrive,
* Any severe thrombocytopenia or any other coagulation disorder that would contraindicate intramuscular injection,
* Clinical evidence of active gastrointestinal illness,
* Receipt of intramuscular, oral, or intravenous corticosteroid treatment within the 14 days prior to randomisation. Note: Infants on inhaled and/or topical steroids may participate in the study,
* Infants residing in a household with an immunocompromised person,
* Prior receipt of a blood transfusion or blood products, including immunoglobulins.

Answer: D