Please select the eligibility criteria that correspond to the clinical trial below.
Title: Mimi - mHealth to Increase Measles Immunization. A Randomized Controlled Trial.
Brief Summary: The question that this project seeks to answer, is whether mobile phones can be used to increase the measles vaccination coverage and timeliness in Guinea-Bissau. The intervention will be evaluated in terms of direct health outcomes and cost/benefit analysis, generating evidence that could help policy makers making informed decisions about implementing mHealth interventions at a national level.

The intervention takes the form of a randomized controlled trial in which text messages (SMS) as well as voice calls are scheduled and delivered to mo thers to remind and encourage them to have their children timely vaccinated against measles. In addition, the messages will include relevant information about opening hours and availability of the measles vaccine at the mothers' local health facilities thus improving coordination. The trial will include three different randomization groups with approx. 350 participants in each group. The first group will receive SMS messages, the second group will receive a voice call in addition to the SMS messages, and the third group is a control group that does not receive any intervention.

Study participants will be enrolled following birth at one of three health centers in different rural regions of Guinea-Bissau. Before the measles vaccine is scheduled to be given, at 9 months of age, mothers will receive the intervention message depending on their assigned randomization group. When the measles vaccine is administered, the child will be registered as having received the measles vaccination.

A follow-up phone interview will be conducted at 12 months of age for all children participating regardless of randomization group and whether or not they received the measles vaccine. All participating children, who at that time still have not received the measles vaccine, will be offered the vaccine at the expense of the project.


Options:
A: Inclusion Criteria:

* evidence of HIV infection
* newly enrolling at the Kibera Community Health Centre
* own or have sufficient access to a cell phone; able to operate a cell phone using simple text-messaging\*
* able and willing to provide informed assent/consent to participate \*If a participant does not own a phone but has sufficient access to a cell phone (through a partner, relative, etc.), the participant would be able to either 1) use the accessed phone to respond to the text messages themselves; or, if they are unable to text themselves 2) have their partner, relative etc. respond on their behalf.

Exclusion Criteria:

* individuals will be excluded if they do not meet all of the inclusion criteria.
* individuals transferring from other clinics who are already taking ART will also be excluded.
B: Inclusion Criteria:

* Age 18 years or older,
* HIV-infected pregnant women and their HIV-exposed infants pairs,
* attends the antenatal care (ANC) clinic at one of the study sites.

Exclusion Criteria:

* Less than 18 years of age,
* HIV-infected women not currently pregnant,
* not HIV-infected at the time of the first ANC visit.
C: Inclusion Criteria:

* the mother has access to a cell phone (either her own phone or the phone of a household member)
* the mother lives in the uptake area of the health center.

Exclusion Criteria:

* the mother does not have access to a mobile phone.
D: Inclusion Criteria:

* Caregiver age 18 years and older
* owner of a mobile phone with unrestricted SMS capability
* responsible for the care of the infant and willing to actively participate for the full duration of the study.

Exclusion Criteria:

* infants with special diets
* infants with limited mobility
* pre-term birth (\<37 weeks)
* small or large for gestational age (birthweight \<10th or \>90th p)
* inability to consent to participate in the study
* unwillingness to be randomized and not being able to read

Answer: C