Covid-19 roundup: The pan­dem­ic bear — You think a vac­cine and herd im­mu­ni­ty are just months away? Dream on, says biotech an­a­lyst; plus more

You’ve all heard the rosiest sce­nar­ios by now.

Vac­cines are rac­ing through clin­i­cal de­vel­op­ment at un­heard-of speed, helped along by reg­u­la­tors work­ing round the clock to beat Covid-19. And man­u­fac­tur­ers have been lay­ing the ground­work for mass pro­duc­tion ahead of Phase I re­sults.

The first wave of jabs and meds could break in a mat­ter of months. With the NIH en­dors­ing such re­marks as “We’ll have a vac­cine by Sep­tem­ber,” every­one from law­mak­ers to in­vestors and the gen­er­al pub­lic have been will­ing to buy in­to the no­tion that sal­va­tion lies right around the cor­ner.

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