Please select the eligibility criteria that correspond to the clinical trial below.
Title: SMS Mobile Technology for Vaccine Coverage and Acceptance in Guatemalan Infants
Brief Summary: To pilot test a mobile phone SMS (Short Message Service) system that will provide periodical messaging texts to mothers or custodians of infants who come for their first dose vaccines within the first 3 months of life to improve timely immunization coverage, vaccine acceptance and ensure vaccine safety monitoring. The intervention will include a "cloud-based" information system alimented by mobile phone data entry at the health post nurse level, that links child vaccination status and is able to remind parents and nurses of the need for next vaccination appointment and provide a system for reporting of adverse events following immunization in the immediate post-vaccination period.


Options:
A: Inclusion Criteria:

* Confirmed HIV diagnosis as per the clinic standard
* Female \>= 18 years old at enrollment
* Currently active or recently returned into care or newly enrolled
* With two or more previously scheduled visits (12 months prior to study enrollment
* in the 12 months prior to enrollment:
* missed one or more visits or
* viral load detectable (\>20 mL) or
* not taking prescribed HIV anti-retroviral medications

Exclusion Criteria:

* men
* women who are cognitively impaired or are not able to consent for themselves
* non-working cell phone
* adolescents \< 18 years old at enrollment
B: Inclusion Criteria:

* Mothers/caregivers of healthy infants (age 0 - 12 months) who:

  1. Have a mobile phone access
  2. Received antenatal care and/or delivered their babies in a hospital
  3. Plans to receive immunizations at the selected PHCs
* Purposively-selected community sample of pregnant women in their third trimester, parents/caregivers of infants, providers, community gatekeepers and policy makers

Exclusion Criteria:

1. Parents of infants requiring hospital admission due to significant illness, congenital deformity/malformation and prematurity
2. Foreigners
C: Inclusion/exclusion criteria are generally lenient in order to ensure that our sample is as representative as possible of the overall HIV+/METH+ population.

Inclusion Criteria:

* Ability to provide informed consent
* 18 years or older at the time of enrollment
* HIV-infected
* DSM-IV diagnosis of methamphetamine abuse or dependence in the past 30 days
* Taking at least one medication to treat HIV illness
* Indication of less than 100% adherence to antiretroviral (ART) medication
* Willingness to use electronic monitoring caps to track ART medication
* Willingness to respond to text messages

Exclusion Criteria:

* Axis I psychiatric diagnosis of psychotic disorder or mood disorder with psychotic features
* Presence of a neurological condition (beyond HIV infection) known to impact cognitive functioning (e.g., Huntington's Disease, Stroke)
* Unwillingness or inability to use electronic medication monitoring technology
* Unwillingness or inability to use daily text messaging
D: Inclusion Criteria:

* Infants 1-3 months of age coming for their 1 dose of primary vaccines

Exclusion Criteria:

* Received 1 dose of vaccines, excluding BCG
* No mobile phone with SMS or unable to use SMS at home
* Intent to move from the clinic area in the next 6 months

Answer: D