Morning mail: India passes 18m, concussion ‘time bomb’, the end of glaciers?

Friday: India's second Covid wave is claiming the lives of thousands every day. Plus: deaths of two NSW men unlikely to be linked to vaccine

It's Friday, the last day of April, and this is Imogen Dewey with today's main stories: the conversation about workplace harassment is far from over, Covid infections in India have passed 18m, and the Tasmanian premier is keeping notably quiet about poker machines before tomorrow's state election.

India's second wave of Covid-19 continues to overwhelm hospitals, claiming the lives of thousands each day. Offers of aid and medical supplies, including from Australia, have flooded in from around the world, but the real issue at hand is the mammoth task of vaccinating the country's 1.4 billion citizens - and the ultimate effort to protect the country from future outbreaks. More than 100 countries are pushing for a temporary waiver of intellectual property rules to boost vaccine access for developing nations. But Australia, along with a handful of other wealthy nations, is so far refusing the plea. Elias Visontay asks why.