CT chest scans reveal fewer cases of pneumonia in breakthrough COVID-19 infections

CT chest scans in patients with breakthrough COVID-19 infections show lower levels of pneumonia compared to scans of unvaccinated patients. A significantly higher proportion of CT chest scans in fully vaccinated patients who experience a breakthrough infection showed no signs of pneumonia during their stay in hospital, according to a study by Korean researchers. COVID-19 vaccination across the globe has led to a protection against both symptomatic and asymptomatic COVID-19 as well as severe disease, hospitalisation and death. Although a CT chest scan has been described as an indispensable diagnostic tool in COVID-19, no studies have reported on using this imaging modality to examine the features associated with breakthrough infections that are generally less severe.