Effects of ventilation on the indoor spread of COVID-19
JOURNAL OF FLUID MECHANICS
Authors: Bhagat, Rajesh K.; Davies Wykes, M. S.; Dalziel, Stuart B.; Linden, P. F.
Although the relative importance of airborne transmission of the SARS-CoV-2 virus is controversial, increasing evidence suggests that understanding airflows is important for estimation of the risk of contracting COVID-19. The data available so far indicate that indoor transmission of the virus far outstrips outdoor transmission, possibly due to longer exposure times and the decreased turbulence levels (and therefore dispersion) found indoors. In this paper we discuss the role of building ventilation on the possible pathways of airborne particles and examine the fluid mechanics of the processes involved.
Liver transplantation in a patient after COVID-19-Rapid loss of antibodies and prolonged viral RNA shedding
AMERICAN JOURNAL OF TRANSPLANTATION
Authors: Niess, Hanno; Borner, Nikolaus; Muenchhoff, Maximilian; Khatamzas, Elham; Stangl, Manfred; Graf, Alex; Girl, Philipp; Georgi, Enrico; Koliogiannis, Dionysios; Denk, Gerald; Irlbeck, Michael; Werner, Jens; Guba, Markus
To date, little is known about the duration and effectiveness of immunity as well as possible adverse late effects after an infection with SARS-CoV-2. Thus it is unclear, when and if liver transplantation can be safely offered to patients who suffered from COVID-19. Here, we report on a successful liver transplantation shortly after convalescence from COVID-19 with subsequent partial seroreversion as well as recurrence and prolonged shedding of viral RNA.