CRP and COVID-19: In evaluating domain appropriate representation, the major information elements required by physicians were present in the first prototype; however, physicians did mention that the following elements needed to be added: (1) A more prevalent display of the date of COVID-19 diagnosis and date of symptom onset; (2) A more prevalent display for vaccination dates if available; (3) The method and volume of current oxygen in L/min; and (4) Additional laboratory test values for procalcitonin, C-reactive protein, and interleukin-6 (indicators of infection or inflammation that could be treated).