Concerns over rare clotting disorders halt use of Johnson & Johnson’s COVID-19 vaccine By Gretchen Vogel, Kai KupferschmidtApr. 13, 2021
Hard choices emerge as link between AstraZeneca vaccine and rare clotting disorder becomes clearer By Kai Kupferschmidt, Gretchen VogelApr. 11, 2021
A rare clotting disorder may cloud the world’s hopes for AstraZeneca’s COVID-19 vaccine By Kai Kupferschmidt, Gretchen VogelMar. 27, 2021
New problems erode confidence in AstraZeneca's vaccine By Gretchen Vogel, Kai KupferschmidtMar. 26, 2021
Data concerns and safety worries fuel crisis of confidence in AstraZeneca vaccine By Gretchen Vogel, Kai KupferschmidtMar. 23, 2021
AstraZeneca reports powerful COVID-19 protection in new vaccine trial By Kai Kupferschmidt, Gretchen VogelMar. 22, 2021
European countries resume use of AstraZeneca’s COVID-19 vaccine, hoping pause has not dented confidence By Kai Kupferschmidt, Gretchen VogelMar. 18, 2021
‘It’s a very special picture.’ Why vaccine safety experts put the brakes on AstraZeneca’s COVID-19 vaccine By Gretchen Vogel, Kai KupferschmidtMar. 17, 2021
No uterus, no problem: Mouse embryos grown in bottles form organs and limbs By Gretchen VogelMar. 17, 2021
Critics slam letter in prestigious journal that downplayed COVID-19 risks to Swedish schoolchildren By Gretchen VogelMar. 2, 2021
