epa09149942 An Indian boy carries an empty oxygen cylinder for filling at oxygen filling center in Bangalore, India, 21 April 2021. There is a shortage of oxygen cylinders in certain COVID-19 affected areas but the Karnataka state government has said that it will do its best to make sure the distribution of liquid medical oxygen is smooth and there will be no shortage.  EPA/JAGADEESH NV
A young Indian man carries an empty oxygen cylinder at a filling centre in Bangalore, India. EPA

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