An estimated 188 million parents worldwide say their children are unvaccinated. Photograph: David Cheskin/PA Wire

Trust in vaccines – one of the world’s most effective and widely-used medical products – is highest in poorer countries but weaker in wealthier ones w(...)

Domestic questions that are burning and unanswerable in more or less equal measure are a staple of social media. This week, it was towels. Specificall(...)

E.coli: the risks of antimicrobial resistance are  further complicated by the lack of development of new antibiotics by pharmaceutical companies. Photograph: iStock/Getty

Antimicrobial resistance – the ability of bacteria, viruses, fungi or parasites to resist the effects of a medicine that could previously treat t(...)

More than 100,000 stillbirths and baby deaths worldwide could be prevented by the development of a vaccine against an infection commonly carried by pr(...)

One Californian study  found that children born to mothers with traces of organophosphate metabolites – a key element of many pesticides – during pregnancy had more ‘adverse mental development at two years of age, attention problems at three-and-a-half and five years, and poorer intellectual development at seven years’. Photograph: Getty Images

It is hard not to be well disposed to organic food and those who grow it. Small-time growers competing with huge multi-nationals who are free to use c(...)

Obese middle-aged people are nearly 30 per cent less likely to develop dementia than those of a healthy weight, a study has revealed. Photograph: Anthony Devlin/PA Wire.

Obese middle-aged people are nearly 30 per cent less likely to develop dementia than those of a healthy weight, a study has revealed.It also found tha(...)

A burial team wearing protective gear places the body of Diana Flomo, who died giving birth prematurely, in a graveyard adjacent to the Bong County Ebola Treatment Unit near Gbarnga, Liberia. Photograph: Daniel Berehulak/The New York Times

Questions have been raised about British government plans to introduce enhanced screening for Ebola at major UK airports and terminals after Gatwick A(...)

Job loss, home repossession and debt are the main risk factors leading to suicide during economic downturns, the authors of a new study of the impact of the recession on suicide rates has said.

The recent recession may have led to thousands of extra suicides, researchers have said.The financial crisis has been linked to more than 10,000 peopl(...)

Should we be wary of lowering cholesterol levels if we’re not at risk of cardiac disease?

We know that having a high level of cholesterol increases the incidence of heart disease and stroke and we avoid many high-fat foods as a result. But (...)

The new bird flu virus, which was unknown in humans until February, has so far infected at least 133 people in China and Taiwan, killing 43 of them. Photograph: Getty

The first scientific analysis of probable human-to-human transmission of a fatal new strain of bird flu that emerged in China this year gives the stro(...)