Published on in Vol 24, No 10 (2022): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/39676, first published
.
![Tracking the Impact of COVID-19 and Lockdown Policies on Public Mental Health Using Social Media: Infoveillance Study Tracking the Impact of COVID-19 and Lockdown Policies on Public Mental Health Using Social Media: Infoveillance Study](https://asset.jmir.pub/assets/c781539e9aba4fbd99d6820369351d67.png 480w,https://asset.jmir.pub/assets/c781539e9aba4fbd99d6820369351d67.png 960w,https://asset.jmir.pub/assets/c781539e9aba4fbd99d6820369351d67.png 1920w,https://asset.jmir.pub/assets/c781539e9aba4fbd99d6820369351d67.png 2500w)
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