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Drawing on the ability\u2013motivation model of information processing, this study examined how such an information overabundance hampered individuals\u2019 ability and motivation to process in the era of COVID-19. With a survey conducted from 493 participants, we found that less message elaboration of COVID-19 prevention information was predicted by greater message fatigue, a state of low motivation due to information overabundance. In addition, greater message fatigue was accompanied by greater information overload, a state of low ability due to information overabundance. Moreover, certain motivation-related (i.e. health status, trait reactance and frequency of information seeking) and ability\u2013related factors (i.e. health literacy, health status, trait anxiety and information quality) were found to be associated with message fatigue and information overload, respectively. The theoretical and practical implications are discussed. <\/jats:p>","DOI":"10.1177\/01655515221118047","type":"journal-article","created":{"date-parts":[[2022,9,5]],"date-time":"2022-09-05T07:23:06Z","timestamp":1662362586000},"page":"1242-1254","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":42,"title":["How do information overload and message fatigue reduce information processing in the era of COVID-19? 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