Several doctors in Cuba have taken to social media to decry shortages of medicine, oxygen and other materials needed to battle a dire Covid-19 outbreak, in a rare public denunciation of conditions in the island's hallowed healthcare system.

The outcry comes in reaction to comments by government officials that the doctors say scapegoat medics for the country's worsening plight while downplaying precarious conditions pre-dating the current crisis.

"I want to denounce the collapse of our health system in our hospital as well as in the rest of the country, due to a lack of resources and protective gear," said Dr Francisco Pavon in a video shared on social media, featuring more than 20 doctors and medical students in the eastern province of Holguin.

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