As Fifi the llama munches on grass on a pasture in Reading, her immune system has provided the template for a coronavirus treatment breakthrough.
Read MoreAustralia's second-largest city has begun a second lockdown in response to a spike in new coronavirus infections.
Read MoreA BBC investigation has found that two life-saving drugs used to treat Covid-19 patients in India - remdesivir and tocilizumab - are in short supply and being sold for excessive rates on a thriving black market. Vikas Pandey reports from the capital Delhi.
Read MoreThe World Health Organization has acknowledged there is emerging evidence that the coronavirus can be spread by tiny particles suspended in the air.
Read MoreZoonotic diseases - which jump from animals to humans - are increasing and will continue to do so without action to protect wildlife and preserve the environment, UN experts have warned.
Read MoreThe US is buying nearly all the next three months' projected production of Covid-19 treatment remdesivir from US manufacturer Gilead.
Read MoreStroke, delirium, anxiety, confusion, fatigue - the list goes on. If you think Covid-19 is just a respiratory disease, think again.
Read MorePeople testing negative for coronavirus antibodies may still have some immunity, a study has suggested.
Read MoreTrials of the controversial anti-malarial drug taken by US President Donald Trump to try to prevent catching coronavirus are to be resumed.
Read MoreSingapore has started to hand out Bluetooth-enabled contact tracing devices as part of its measures to slow the spread of the coronavirus.
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