Inclusion and exclusion criteria
| Inclusion criteria | Exclusion criteria | |
| Population | Equity-deserving populations (marginalised populations, vulnerable populations, minorities, at-risk populations, communities experiencing stigma, discrimination, inequality, inequity). | General population |
| Concept | Risk communication through social media (eg, communication about COVID-19 risks and events, instructions on how to change behaviour to mitigate risks, motivating compliance and addressing false information). | Risk communication through non-social media such as broadcast news (TV, radio) and print media (newspapers, magazines) |
| Context | COVID-19 | Other infectious diseases such as HIV and Ebola |
| Type of study | All study types will be included: peer-reviewed journal articles, non-governmental organisation reports and academic dissertations. | No criteria |
| Study design | All study designs will be considered including cross-sectional qualitative and quantitative studies, randomised controlled trials and quasi-experimental designs editorials, commentaries and pilot studies. | No criteria |
| Language | Evidence published in English | Non-English sources |
| Time | After 2019 to 2022 | Before 2019 |