After 3 years of discussions, 194 member countries of the World Health Organisation have agreed to the text of a pandemic treaty designed to make the world safer from a future pandemic – but what could it mean in practice and how are countries held to account?

Also on the show, how treating high blood pressure can reduce the risk of dementia. Researchers have suggested it takes more than just medication; lifestyle changes are also key to lowering the risk.

We learn how Oropouche is underdiagnosed across the Americas and the impact climate has on the spread of this insect-borne virus. Plus, a new weight loss pill has been found to reduce weight and blood sugar levels in its latest trial.

Has an anecdote you read online or heard from a friend ever changed how you feel about the medical choices you make? We hear about the power of anecdotes, especially negative ones, when making a decision for your own health.

Presenter: Claudia Hammond

(Image:Co-chair of the negotiations and French ambassador for Global Health Anne-Claire Amprou (L) and WHO Director-General Tedros Adhanom Ghebreyesus after a consensus on the Pandemic Agreement at the WHO headquarters. Credit: CHRISTOPHER BLACK/World Health Organization/AFP via Getty Images)

Has the long-standing mystery of which wild animals form a reservoir of mpox in the wild finally been solved? Some scientists think they have cracked the case, pinpointing the fire-footed rope squirrel as the culprit, but questions remain before we can definitively say this species is to blame.

Reporter Chhavi Sachdev in Mumbai has some good news – an indigenous antibiotic breakthrough has been found to be effective at treating antibiotic resistant pneumonia. We hear what it takes to develop a new antibiotic and what makes Nafithromycin such a ground-breaking discovery.

Also on the show, the biological mechanism that drives apathy and lack of motivation in late-stage cancer patients and how nature-based interventions, such as agroforestry, have unintended health benefits.

Plus, have you ever wondered why humans can’t regenerate our teeth? We hear how some scientists are growing teeth in a lab to transform dental regeneration in the future.

Presenter: Claudia Hammond

What would you do if you have always considered yourself healthy and one day you find out that not only is this not the case, but you in fact need a new organ? We follow BBC journalist Mike Powell on his journey to receive a life-changing kidney transplant and talk to his donor who made it all possible.

With a growing global need for kidneys, we hear from others around the world that are on long transplant waiting lists and from Professor Elmi Muller who shares what we can do to reduce the wait time.

Presenter: Claudia Hammond

‘Friendship benches’, a mental health intervention first piloted in Zimbabwe, are now being handed over to the government in that country. It is hoped that this will allow the program to become more widespread.

Also on the show, a new device can convert brain signals to speach in nearly real time for those who have been paralysed, a medicine for rare genetic disorders could also make human blood deadly to mosquitos, and the US Food and Drug administration has approved a new first-in-class antibiotic for uncomplicated urinary tract infections.

Presenter: Claudia Hammond

(Photo: Counsellor "Gogo" Shery Ziwakayi (R) sits on a bench in conversation with a client "Muzukuru" Choice Jiya (L) during a private session at the Friendship Bench in Harare, 4 November, 2022. Credit: Jekesai Njikizana/AFP)

What does it feel like to be part of a study which might have its funding cut? Marty Reiswig has a rare genetic mutation that means he will get Alzheimer’s disease in his forties or fifties. For fifteen years he’s been part of medical studies into his condition, but now, with the NIH announcing funding cuts, he’s worried the studies will stop.

Also on the program, would you do CPR on another bystander? A new study finds that speed of response – not how trained you are – is what’s important. So how can we get more people doing this live-saving measure? And MRI imaging indicates that babies might actually be encoding memories. So why can’t we remember what it was like to be that young?

Presenter: Claudia Hammond

A federal judge has said the shuttering of USAID is ‘likely unconstitutional’, while the Trump administration has been ordered to pay back bills for USAID. But what difference is this making on the ground? Global health journalist Andrew Green is in Uganda finding out. Also on the show, a new safety trial shows yearly injections of the drug lenacapivir may be able to prevent HIV transmission, and PCOS and endometriosis are two fairly common gynecological issues, but could they also lead to cardiovascular issues?

Presenter: Claudia Hammond

The Americas are in danger of losing their measles elimination status as the disease spreads due to under vaccination. Also on the show, a study finds that continuous glucose monitors may be overestimating blood sugar levels in healthy adults. And it’s been ten years since Brazil experienced and epidemic of microcephaly due to the Zika virus. What have we learned in that time?

Presenter: Claudia Hammond

As the Trump administration cuts 90% of programs funded by the US Agency for International Development, we look at the effect on global health.

Also on the program, violence in the Democratic Republic of Congo is hindering the country’s ongoing MPox response – just as a new, more transmissible strain is discovered. And, a look at an initiative trying to improve women’s mental health in Guatemala.

Presenter: Claudia Hammond

Encephalitis can be a debilitating condition, but many people have never even heard of it. A new global report looks at how we can improve diagnosis and treatment.

Also on the program, new research seems to indicate that antidepressents might speed cognitive decline in dementia patients, but do they really? We take a closer look at some of the caveats. And a gene therapy for toddlers who have gone blind is showing some promise, we’ll look into what this could mean for future treatments.

Presenter: Claudia Hammond

The global need for medical oxygen is high, but there are huge gaps in safe and affordable access. The first report of its kind identifies not only who is most vulnerable, but how the world can strengthen the supply of medical oxygen to improve public health and pandemic preparedness.

We hear first-hand the impact of the USAID freeze on health clinicians in practice. And we learn how health systems are rebuilt after conflict, integrating resilience to protect them against future shocks.

Also on the show, can weight-loss drugs curb alcohol addiction? Plus, scientists discover it is not just your tongue that can taste sweetness - sweet taste receptors have been found on the heart, and they could play a role in heartbeat regulation.

Presenter: Claudia Hammond

(Photo: A woman uses an oxygen mask at a medical health centre in Omdurman, Sudan, 3 September, 2023. El Tayeb Siddig/Reuters)