varicella(4) acyclovir(4) moist gangrene(4) Streptococcus pyogenes(4) Varicella zoster virus.(3) herpes zoster(3) Post herpetic neuralgia(3) Coronavirus disease 2019(2) education(1) psoriasis(1) Academic training(1) resident(1) Burnout(1) vaccine.(1) working conditions.(1)