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As more of our elderly die of COVID-19 in aged-care homes each day, many residences have gone into strict lockdown to try to stop the virus's spread among Australia's most vulnerable.

At Newmarch House in Kingswood, in Sydney's west, for example, another person died on Tuesday morning, taking the total deaths there to 16.

So lockdowns are a vital weapon in the fight against coronavirus. But in some homes they have also meant crucial services have been slashed.