The cdc has mentioned increasing choline levels for covid-19 prevention and treatment? is there any specific approach that could be helpful, such as a change in diet to increase choline intake?

Best plan: is to avoid exposure, wash hands, don't touch face, eye, mouth. Supplements could help, thou unproven, also could give a false sense of security.

Hmm?: I have not been able to locate any CDC recommendations for Choline supplementation for prevention or treatment of COVID 19. In general, no supplements have been found to prevent or treat COVID 19.