A pre-symptomatic contagious period is pretty widely acknowledged at this point I think. The bigger worry is that people may continue to spread it even after th

A pre-symptomatic contagious period is pretty widely acknowledged at this point I think. The bigger worry is that people may continue to spread it even after they have recovered: > The fact that asymptomatic persons are potential sources of 2019-nCoV infection may warrant a reassessment of transmission dynamics of the current outbreak. In this context, the detection of 2019-nCoV and a high sputum viral load in a convalescent patient (Patient 1) arouse concern about prolonged shedding of 2019-nCoV after recovery. Yet, the viability of 2019-nCoV detected on qRT-PCR in this patient remains to be proved by means of viral culture.