Since Covid-19 has been the currently prevailed subject, I would like to have a reference to it. And what is better than to use the sayings of the WHO (World Health Organization). I suggest the reading of the full relevant brief. As motivation, I cite the “conclusions” here:
Almost all available evidence suggests that hypertension increases the risk of severe COVID-19, defined as, admission to intensive care, clinically-defined severity or a combination of these; or mortality. It was sometimes unclear, however, whether this prognostic profile was independent of other risk factors. There were no systematic reviews or meta-analysis studying whether people with hypertension, in comparison to otherwise healthy individuals, were at higher risk of being infected by SARS CoV-2.”
You can find the full brief by clicking here.