Virologist Dr Chris Smith returns to answer more questions about the emerging science around the novel coronavirus pandemic. A consultant clinical virologist at Cambridge University, and one of BBC Radio 5 Live's Naked Scientists, he's become something of a regular on the show over the past few weeks. This week, what is our growing understanding about Covid-19 telling us about symptoms and potential treatments?

As Secretary-General of The International Federation of Social Workers, New Zealander Rory Truell leads an organisation responsible for representing and supporting five million professional social workers in 141 countries worldwide. Beyond the medical and scientific challenges posed by Covid-19, and with levels of domestic violence spiking under lockdowns, social workers are also saving lives. He discusses how social workers are having to adapt to working in the pandemic, and how things might change for the profession in the future as a result of what's happening now.

Broadcaster, science writer and 'recovering geneticist' Adam Rutherford has also just recovered from something else: Covid-19. We'll speak to him about the experience and about his new book How To Argue With A Racist.

New York City remains at the epicentre of the US experience of the novel coronavirus. Although thankfully hospitalisations, new cases and deaths now seem to be on a downward path, its health system and the people staffing it remain under huge strain. Born and raised in Taranaki, Anushri (Anu) Anandaraja is the Director of the Office of Wellbeing and Resilience at Icahn School of Medicine in Manhattan. The medical school's part of the vast Mount Sinai hospital network that employs more than 7,000 doctors and 40,000 total staff across its eight hospitals, making it New York City's second biggest employer. She also campaigns for better PPE and support for the city's overstretched medical personnel. Workplace stress over workloads and potential exposure to the disease has been thrown into sharp relief this week, after the apparent suicide of one of the city's leading ER doctors.

With gluten-crazed hordes of home bakers stripping supermarket shelves of every last gram of flour, now sugar, yeast, and baking powder have become the new, must-have essentials of Lockdown Season. And the lockdown's also bringing busy times to some bakeries, especially those specialising in home delivery! Sam Forbes aka the Shelly Bay Baker explains how Level 4 has transformed his business, explores some sourdough science, and expands on why more of us are trying to bake their own bread at home. He'll even have some handy tips on what to do (and what not to do) and will answer any bread-related questions you have for him. https://shellybaybaker.co.nz/ https://shellybaybaker.co.nz/community/ Website for flour sales: going live tonight: https://capitalmillers.co.nz/

Former punk, psychiatric nurse, wrestling fan, now novelist and musician John Darnielle (rhymes with 'barn feel'!) is a writer, composer, guitarist, pianist, and vocalist and the primary (and once the only) member of The Mountain Goats. The band's new album Songs For Pierre Chuvin is a product of the lockdown, recorded over 10 consecutive nights, one song a night, in self isolation in Darnielle's home in Durham, North Carolina. And it sees a return to the band's lo-fi roots, with a decidedly analogue production process, and a distinctively homemade feel. As Darnielle writes, 'I dedicate this tape to everybody who's waited a long time for the wheels to sound their joyous grind: may they grind us into a safe future where we gather once again in rooms to sing songs about pagan priests & hidden shelters, and where we see each other face to face.'

The decorated war correspondent Christina Lamb (Farewell Kabul, I Am Malala) has written a harrowing history of what war does to women. Our Bodies, Their Battlefield is her attempt to tell the true story of the injustices down to women in wartime. And shamefully, rape and sexual violence have become commonplace in many modern conflicts as a weapon of terror and humiliation, and as a way of carrying out ethnic cleansing.

Angela Wanhalla and Professor Lachy Paterson from the University of Otago are studying the often overlooked history of the impact of the Second World War on Maori society at home in New Zealand. With 3,600 Maori seeing active service on the battlefields of North Africa, Italy and elsewhere, a much bigger 'army' of 29,000 people (almost one-third of the total Maori population of the time) were making less heralded but no less valuable contributions to the war effort on the Home Front. From the importance of sport, to community and cultural activities, and economic opportunities, the war had a profound and long lasting impact on Maori history and experience.

Dr Chris Smith, a consultant clinical virologist at Cambridge University, and one of BBC Radio 5 Live's Naked Scientists, is back to assess the latest research and Covid-19 scientific developments as we try to understand the virus better. This week, human trials on vaccines ramp up in the UK and Germany: so what kind of protections can a vaccine offer? Also a new study casts doubt on the idea of children as active 'super spreaders' of the disease. Meanwhile, strange blood clotting effects, and a distinctive form of pneumonia, suggest Covid-19's behaving very differently from other types of coronavirus.

The landscape photographer, conservationist, traveller and publisher Craig Potton is finding a prolonged period of social isolation strangely productive. Ensconced in a bubble in Nelson with two daughters and two dogs he's suspended all surfing activities, but is instead working on a book about pilgrimages in the Himalayas.