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And at a shady tent, a group of teenagers blared pop songs, looped together friendship bracelets and did one another’s makeup, blending rainbow eye shadow and studding sequins along their foreheads.

A recent study in the journal Science Immunology says this ability to escape antibodies is due to more than 30 changes in the spike protein studding the surface of the virus.

Williams gave Pruitt information about her family and her relationship to tennis history that he has embedded, such as studding the swirling beads with the birthstones of her siblings.

Scientists expect more genetic changes that affect parts of the spike protein studding the surface of the virus, letting it attach to human cells.

But Ferreira found that people who carry a specific variant of the ACE2 gene have about 39 percent fewer receptors for the protein studding their cellular surfaces.