As a FYI, we need to understand the pattern of such diseases, so courtesy Yandex Image search (Google did an obvious results suppression): This leads to the simplified U/L trajectory description. If a vulnerable patient catches, things tend to get worse over several days, potentially leading to a crisis from immunity system over-reaction and/or secondary infection (“complications”). That can lead to flat-lining, the L, death. But if one makes it through the trough, a recovery period extends the disease process, the U trajectory. BTW, to see the U/L, invert the black line that rises with severity on the chart. Shouldn’t a deterioration lead to sinking? U/D, HT Jerry and MedCram/Mina: Let’s look at a plot of viral load vs time Read More ›