It is mysterious till yet, according to WHO in respect of COVID_19, pathogen which kills a person not survive longer, person can be contagious for hours, but not for days, in case of tuberculosis, gastrointestinal
infections and bloodborne viruses (Hepatitis, HIV) it remains contagious even after death.
Since this is a new virus, there is no clear idea of the expected indicators ... It is known that on the surface the virus remains contagious for 3-4 days. A dead person vryatli will pose a threat to others. Regards, Sergey Viktorovich Pushkin