Interaction between age and health conditions in the intention to be vaccinated against COVID-19 in Thailand.

To study the sociodemographic factors as well as the interaction between age groups and health conditions in relation to the intention of being vaccinated against coronavirus disease 2019 (COVID-19) in Thailand. A cross-sectional survey was conducted during the "third wave" of the COVID-19 pandemic in Thailand (March to April 2021). The survey was uploaded and administered the online survey platform of Google™.

Public Perception of the COVID-19 Pandemic on Twitter: Sentiment Analysis and Topic Modeling Study.

Background: COVID-19 is a scientifically and medically novel disease that is not fully understood because it has yet to be consistently and deeply studied. Among the gaps in research on the COVID-19 outbreak, there is a lack of sufficient infoveillance data.

Objective: The aim of this study was to increase understanding of public awareness of COVID-19 pandemic trends and uncover meaningful themes of concern posted by Twitter users in the English language during the pandemic.