“…These studies include analysing social media data for pandemics (Chew and Eysenbach, 2010; Ortiz-Martínez and Jiménez-Arcia, 2017; Seo and Shin, 2017) as well as mood swings and depression (Chen et al, 2018). Search engine data has been utilised to investigate a multitude of illnesses and health issues, like mental health issues (Arendt and Scherr, 2017;Ayers et al, 2013;Tana et al, 2018;Tana, 2018), chronic diseases and symptoms (Basnet et al, 2016), diabetes (Tkachenko et al, 2017), different virus and influenza outbreaks (Bragazzi et al, 2017;Carneiro and Mylonakis, 2009;Kraut et al, 2017;Osuka et al, 2018), transient ischemic attack (Abedi et al, 2015), status epilepticus (Brigo and Trinka, 2015), exercise and weight loss (Madden, 2017), as well as Lyme disease (Pesälä et al, 2017;Seifter et al, 2010). Web traffic again has been utilized for studying accessing health information on the internet related to different topics, such as suicide-related information and pharmacovigilance (Wong et al, 2013;Matsuda et al, 2017).…”