From President Biden's executive orders to double masking, here is how the COVID-19 pandemic has played out so far in 2021.
Stacker compiled a collection of 50 incredible images showcasing groundbreaking science-related milestones and events that took place in 2020.
Stacker compiled 36 facts about “long haul” COVID-19 patients, from symptoms to demographics, using data from Mayo Clinic, The Atlantic, and news sources.