There is no point at all in being worried but everyone should be concerned. Interestingly, covid-19 has some similarities with the fourteenth century black death which very few intermediate epidemics have shared. In particular, there is no vaccine and there may be very little long-term acquired immunity. History tells us that from about 1438 there were successive resurgences of the black death at roughly ten-year intervals for approximately a century. Although hygiene and living conditions are very different now, the history does make me think that the recovery will not be described by a V-shaped graph, let alone an L-shaped one, but rather by an upper-case W followed by a series of lower-case ws: Wwww. A vaccine of course would change the game and bring it into line with MMR and other afflictions such as polio. Vigilance is the order of the day; and, of course, treatments such as dexamethasone take the sting out of severe cases. Additional treatments look likely: so watch, hope and take your precautions. Good health to all.
