Please select the eligibility criteria that correspond to the clinical trial below.
Title: Chemoprophylaxis With Sulfadoxine-pyrimethamine to Prevent Recurrence of Severe Anaemia in Gambian Children Aged 3 Months to 9 Years
Brief Summary: Severe anaemia is a frequent cause of admission to hospitals in tropical Africa and about 10% of such children die. In endemic countries, anaemia has multiple causes such as nutritional deficiencies, infections and haemoglobinopathies. However, Plasmodium falciparum infection is believed to be the major contributory factor to the aetiology of severe anaemia. Severe anaemia is usually treated by blood transfusion although transfusion carries the attendant risk of transmission of HIV and other blood-borne infections. Thus, there is a need to explore novel strategies to reduce the incidence of severe anaemia in high-risk groups such as children with suboptimal haemoglobin levels because these children are at increased risk of developing severe anaemia if they develop a malaria infection before their haemoglobin level has normalized. Therefore, it is proposed to study whether monthly chemoprophylaxis with sulphadoxine/pyrimethamine (S/P) given during malaria transmission season can protect Gambian children from developing severe anaemia. After receiving treatment from the hospital, 1200 children admitted to the hospital with a haematocrit of less than 21% were randomised to receive either monthly S/P or placebo during the rest of the malaria transmission season. Morbidity was monitored throughout the rainy season. Study subjects were seen at the end of the dry season to document morbidity and mortality.


Options:
A: Inclusion Criteria:

1. Age: 3 months to 9 years.
2. Haemoglobin concentration 7g/dl on admission to hospital.
3. Residence within 30 km of the study centre and availability for the duration of the study period.
4. Informed consent to participate in the study given by the parent or guardian.

Exclusion Criteria:

1. Simultaneous participation in any other trial.
2. Allergy to sulpha drugs.
3. Residence \> 30 km from the recruitment site.
4. Lack of consent.
B: Inclusion Criteria:

* Informed consent
* Permanent residence in the study area

Exclusion Criteria:

* Allergy/hypersensitivity to sulfonamides or pyrimethamine
* Signs of severe hepatic or renal dysfunction not due to malaria
C: Inclusion Criteria:

* Children between the ages of 3-59 months resident in the selected communities
* Children likely to be available for follow-up for 18 months
* Consent by parent/guardian of child

Exclusion Criteria:

* Chronic illness
* History of hypersensitivity to any of the study drugs
D: Inclusion Criteria:

* Children aged 6 months to 5 years admitted to Mulago hospital during the study period who satisfy the World Health Organization (WHO) case definition of cerebral malaria (Unarousable coma lasting more than 30 minutes after a seizure, with peripheral asexual P.falciparum parasitaemia and absence of other causes of coma) and whose caretakers give informed consent.

Exclusion Criteria:

* Patients with diarrhea (more than 4 motions/24 hours)
* Any recent anal pathology (such as rectal bleeding, rectal prolapse)
* Documented quinine treatment in previous 48 hours.

Answer: A