Nathan Grebil takes the temperature of a fourth-grader during a health screening in October at Bel Aire Elementary School in Tiburon, Calif.

TIBURON, CA – OCT. 16: Nathan Grebil (right) takes the temperature of fourth grade cohort student Hyla (left), 9, during a coronavirus school reopening health screening at Bel Aire Elementary School on Friday, October 16, 2020 in Tiburon, Calif. (Lea Suzuki/The San Francisco Chronicle via Getty Images)