disease. so trying develop vaccines and also this level, even made it more important. protein vaccines are cheap and easily transportable, making them vital for reaching developing countries. but just like the others, keith faces a key challenge. you see, the spike protein isn t just a stationary protrusion. it s a shape shifter. as in a moving target. the spike protein is highly flexible. it wants to fall apart. it wants to flip into other structures. so it s like playing three-dimensional chess. the shape of the spike before the virus meets our cells is what triggers the strongest antibody response. so any new coronavirus vaccine needs a little engineering. to lock it into exactly the right shape. get it wrong and the vaccine won t offer much protection.
coronavirus has struck dozens of people and put an entire region on edge. gao s team gave the world the first glimpse of its new enemy. each coronavirus particle filled with genetic instructions called rna and covered in a corona, or crown, of protein spikes. inhale one of these viruses, and the spikes latch on to cells in our airways. the spikes then change shape, fusing the virus and the cell together. at this point the virus can replicate, and fast. and take another look at that spike. you will be hearing a lot more about it. while most of the world remained largely oblivious to the potential threat, gao s
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