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COVID-19 vaccine messaging on social media in Kenya

Trusted messengers in improving vaccine outcomes in Kenya

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN49683523
Enrollment
15000
Registered
2022-05-17
Start date
2022-05-20
Completion date
Unknown
Last updated
2023-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Source credibility and vaccine outcomes Not Applicable

Interventions

Current interventions as of 23/01/2023: The in-survey experiment has four treatment arms, one control group, and one placebo group. Each treatment arm consists of one video with conten

Sponsors

Busara Center for Behavioral Economics
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Over the age of 18 years

Exclusion criteria

Exclusion criteria: If an individual has already participated in a related survey for the study.

Design outcomes

Primary

MeasureTime frame
Current primary outcome measures as of 23/01/2023: Measured post-treatment within the survey: 1. Source Credibility: 1.1. Trustworthiness, scaled from 0-5. Please rate the trustworthiness of this content is on a scale of 1-5, where 1 is the worst content and 5 is the best content in your opinion [5 star option] 1.2. Expertise, scaled from 0-5. Please rate the expertise of this content is on a scale of 1-5, where 1 is the worst content and 5 is the best content in your opinion [5 star option] 2. COVID Vaccine Outcomes: 2.1. COVID vaccine knowledge, binary indicator for correct answer: correct answer of ”Herd immunity protects those who can’t be vaccinated, because the disease is less likely to reach them.” 2.2. COVID vaccination acceptance, binary indicator for yes. If a COVID-19 vaccine was available to you, would you take it? 2.3. COVID vaccine uptake, binary indicator for participation. Participating in a COVID vaccine pledge campaign where 1 = Yes, 0 = No. 3. General Vaccine Outcomes: 3.1. Influenza vaccination acceptance, binary indicator for yes: If the influenza vaccine was available to you, would you take it? 3.2. Cholera vaccination acceptance, binary indicator for yes: If the cholera vaccine was available to you, would you take it? 3.3. Pneumonia vaccination acceptance, binary indicator for yes: If the pneumonia vaccine was available to you, would you take it? 3.4. Seeks vaccine information, binary indicator for yes: Would you like to sign up to receive more information about how to access the influenza, cholera, or pneumonia vaccines? Please enter your email address if you would like to receive more information, otherwise please leave it blank. Previous primary outcome measures: Measured at baseline and the endline (2 w

Secondary

MeasureTime frame
Current secondary outcome measures as of 23/01/2023: Measured post-treatment within the survey: 1. Backlash: 1.1. Haha reaction, with a binary indicator: Selects haha reaction emoji 1.2. Angry reaction, with a binary indicator: Selects haha reaction emoji 2. Local Healthcare Outcomes: 2.1. Binary indicator for trust in the local healthcare workers: Personally, how much trust do you have in Kenyan healthcare workers? (1 = Trust them a great deal/Tend to trust them, 0 =Tend to distrust them/Distrust them greatly/Not sure or don’t know) 2.2. Support for local healthcare workers: amount donated out of 100 Ksh to local healthcare workers 3. Misinformation: 3.1. Believes in COVID conspiracy theory, binary indicator for yes: Do you believe in any conspiracy theories around COVID? If yes, please describe here. 3.2. Believes that vaccines protect against serious diseases, binary indicator for yes: Do you believe that vaccines can protect you from serious diseases? Previous secondary outcome measures: Measured at baseline and the endline (2 weeks): 1. Prosocial vaccination index is the mean of: (1) I will take a vaccine to protect my family/members of my household against having COVID-19 in the future, where 1 = Strongly agree/Agree 0 = Disagree/Strongly disagree; (2) I will take a vaccine to protect my community against having COVID-19 in the future, where 1 = Strongly agree/Agree 0 = Disagree/Strongly disagree. 2. Vaccine norms index is the mean of: To what extent do you agree with the following statement: Most people in [Kenya/Nepal/the Philippines] should go to get vaccinated against COVID-19, where 1 = Strongly agree/Agree 0 = Disagree/Strongly disagree; (2) If you had a family member or friend who was unsure whether to accept the COVID-19 vaccine, h

Countries

Kenya

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026