CDIPT and COVID-19: When looking at the prevalence of confirmed COVID-19 cases with symptomatic subjects (Table 5), there were 277 PIS +subjects (prevalence 30.3%), of which one PIS +subject (prevalence 33.3%) was≤5 years of age, 37 PIS +subjects (prevalence 33.3%) were 6–21 years old, 191 PIS +subjects had were 22–59 years old (prevalence 29.7%), and 48 PIS +subjects were found in the ≥60 years category (prevalence 30.8%).