A health worker prepares to administer Ebola vaccine, outside the house of a victim who died from Ebola in North Kivu province of the Democratic Republic of Congo. Photograph: Olivia Acland/Reuters

An outbreak of Ebola in a volatile region of eastern Democratic Republic of Congo is now the second worst in history. At least 426 people have been i(...)

Fianna Fail TD  Marc MacSharry said the default position of the medical community on Lyme disease seemed to be “there’s nothing to see here” Photograph: Bryan O’Brien/THE IRISH TIMES

Organisers of the State’s first resource centre for Lyme disease had to change the venue for the launch after the Mater Hospital objected to the use o(...)

In urban areas transport-related emissions of nitrogen-dioxide arising from fossil-fuelled vehicles are close to the EU limit, and continue to pose the biggest threat as Ireland is often above the health-related and tighter WHO and EEA guidelines. Photograph: Getty Images

The burning of solid fuel for home heating across the country and emissions from transport in large urban areas are the main threats to good air quali(...)

A Syrian boy receives treatment at a hospital in  Aleppo on Saturday. Official Syrian media accused the armed opposition of launching an attack with “toxic gas” on the northern city, but a leading rebel alliance has denied any involvement. Photograph:  George Ourfalian/AFP/Getty Images

The global chemical weapons agency will investigate an alleged gas attack in Aleppo, Syria on Saturday that reportedly wounded up to 100 people, the h(...)

Examining data from 193 countries, the group found evidence that climate contributed to a higher incidence of binge drinking and liver disease. Photograph: iStock

A new study suggests people living in cold climates with less sunlight are more likely to drink heavily. The US research establishes a link between a(...)

It is flu season – or perhaps it is still lurking just around the corner. Either way, influenza is a nasty and potentially dangerous infection, and it(...)

Sisters Margaret and Ann Kennedy at home in Greystones, Co Wicklow. Photograph: Nick Bradshaw for The Irish Times

As a woman with congenital rubella syndrome, I would like to discuss vaccinations and speak from experience. My twin sister and I share this same birt(...)

As we grapple with rising rates of antibiotic resistance and the emergence of infections that are effectively untreatable, the focus has naturally been on antibiotic stewardship. Photograph: iStock

The discovery of a new antibiotic is a rare event. Especially one that works in a novel way. Cefiderocol, in a trial published recently in The Lancet(...)

The heavy smog in  New Delhi. It is likely to get worse when millions of residents illuminate their homes with oil lamps and burst firecrackers on Wednesday to celebrate Diwali, the annual festival of lights. Photograph: Getty Images

India’s capital New Delhi was enveloped on Monday in a blanket of thick grey smog that threatens to worsen when millions of residents illuminate their(...)

The World Health Organisation  said that globally, 93 per cent of all children live in environments with air pollution levels above its guidelines. Photograph: Getty Images

More than nine in 10 children around the world are living in areas of toxic air pollution, global health leaders have warned. The World Health Organi(...)

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