The race for a Covid vaccine: inside the Australian lab working round the clock to produce 100m doses

The Guardian is given a unique insight into the operations of CSL, which is making vaccines that could help end the crisis

Some call it the happy soup".

Take a dash of modified Covid-19 protein DNA, mix it with cells from a Chinese hamster's ovary, and place the combination in two state-of-the-art 2,000L bioreactors in a sprawling scientific facility on Melbourne's northern fringes.