Coronavirus: Does the amount of virus you are exposed to determine how sick you`ll get?
(PHYSorg.com Medicine & Health)

Healthcare workers are likely to be in contact with many COVID-19 patients every day. Being in contact with more people with the disease means that, in theory, they will be exposed to higher doses of the coronavirus over time. Does that mean they are at greater risk of contracting the disease, as reports from some countries suggest?