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Autopsies show Covid 19 can affect the brain and other organs. Pathologist Mary Fowkes from the Icahn School of Medicine at Mount Sinai found the signs of stroke - unusually in young people, as well as a disruption of the immune system throughout the body.

And studies of heart stem cells show these can be killed by the virus. Cell Biologist Stefanie Dimmeler from the University of Frankfurt says this finding could prove useful in providing treatment and preventative medicine.

A massive research project in China has identified over 700 different types of coronavirus carried by bats, some of these obscure virus sequences are thought to have already jumped from bats to human and animals such as pigs. In a similar way to SARS-CoV-2 they present a potential threat as a source of future pandemics says Peter Daszak from the EcoHeath Alliance which conducted the research in collaboration with Chinese scientists.

And is there racism in the way people with Covid -19 infections are categorised? It鈥檚 an issue which concerns toxicologist Winston Morgan from the University of East London. He says as race is a social construct it鈥檚 an inappropriate measure to use when trying to work out who is vulnerable to the virus.

(Image: Illustration showing the virus structure of SARS-CoV-2. Credit: CDC HO via AFP / Getty)

Presenter: Roland Pease
Producer: Julian Siddle