Immunity to the Coronavirus May Persist for Years, Scientists FindImportant immune cells survive in the bone marrow of people who were infected with the virus or were inoculated against it, new research suggests.Immunity to the Coronavirus May Persist for Years, Scientists Find
How Pfizer Makes Its Covid-19 VaccineBehind the scenes from starter cells to a finished vaccine.How Pfizer Makes Its Covid-19 Vaccine
Researchers Are Hatching a Low-Cost Coronavirus VaccineA new formulation entering clinical trials in Brazil, Mexico, Thailand and Vietnam could change how the world fights the pandemic.Researchers Are Hatching a Low-Cost Coronavirus Vaccine