Workers load oxygen cylinders at a charging station on the outskirts of Prayagraj, India, Friday, April 23, 2021. Indian authorities scrambled Saturday to get oxygen tanks to hospitals where COVID-19 patients were suffocating amid the world’s worst coronavirus surge, as the government came under increasing criticism for what doctors said was its negligence in the face of a foreseeable public health disaster. (AP Photo/Rajesh Kumar Singh)