Crisis and Risk Communication During the COVID-19 Pandemic: Public Trust, Misinformation, and Institutional Messaging

Abstract

The COVID-19 pandemic exposed substantial weaknesses in public health communication, revealing how institutional credibility, conflicting information, and unequal access to reliable guidance shaped responses to an evolving emergency. This review examines relationships among crisis communication, public trust, misinformation, risk perception and compliance, drawing on international evidence with particular attention to Nigeria and other African settings. A critical narrative synthesis of literature published through 2020 integrates theoretical frameworks with empirical studies of institutional messaging, digital information environments, behavioural responses and communication inequalities. The findings indicate that timely disclosure, consistent guidance, transparent acknowledgement of uncertainty and credible institutional representation supported public understanding, although communication effectiveness varied across contexts. Trust was important but insufficient to explain compliance, which also reflected perceived vulnerability, confidence in preventive measures, social norms and the practical capacity to follow recommendations. Social media accelerated access to health information while enabling rumours, conspiracy theories and misleading treatment claims to circulate widely, creating difficulties for official risk communication. Disparities in health literacy, language, digital connectivity, geography and socioeconomic resources compounded these challenges, particularly for rural and otherwise underserved populations. Evidence from African settings highlighted the value of culturally appropriate messaging and trusted community intermediaries alongside coordinated national communication. The review recommends transparent, responsive and inclusive communication systems that combine accessible digital and offline channels, proactive misinformation management, sustained public engagement and practical support for protective behaviour. Future research should prioritise longitudinal, cross-national and intervention-based evaluations to establish how trust and risk perception interact with structural constraints, identify effective approaches for disadvantaged communities and strengthen equitable preparedness for subsequent global public health emergencies.