Outbreaks in nursing homes in Ireland and other European countries help to skew data on deaths for older age groups, rendering cross-country comparisons of the scale of the pandemic inaccurate, researchers say. Photograph: John Stillwell/PA

Older people in Ireland, North and South, have been among the most disproportionately affected internationally for deaths from Covid-19, a new study i(...)

Restaurant owners bang ladles against saucepans  at a demonstration against restaurant and bar closures in Marseilles. Photograph: Daniel Cole

Four more French cities were on Thursday put on maximum alert in the resurgent Covid-19 epidemic, health minister Olivier Véran announced, bringing th(...)

Merck intends to shoulder the cost of scaling up production of the vaccines before they have been proven to work

Merck, which has largely kept to the sidelines of the race for Covid-19 treatments, said it was buying Austrian vaccine maker Themis Bioscience and wo(...)

French president Emmanuel Macron promised overtime payments and a ‘gratitude bonus’ to medical personnel. Photograph: Getty

France is “only at the beginning” of the coronavirus epidemic, said President Emmanuel Macron on Wednesday night. “But we will hold on . . . because w(...)

 A man wearing a clown mask and waving a smoke bomb takes part in a demonstration against  pension overhauls, in Marseille,  France. Photograph: Clement Mahoudeau/AFP via Getty Images

Place de la Nation, eastern Paris, 4.30pm. Police vans line the boulevards that extend spoke-like from the large square. Dozens of police officers, Af(...)

Schoolchildren in San José, Costa Rica, eat next to  a noticeboard warning against Zika  as part of a government campaign to prevent the spread of the aedes aegypti mosquitos . The words on the noticeboard read: “All against Dengue, Chikungunya, and Zika”. Photograph:  Juan Carlos Ulate/Reuters

A new study of 42 cases of Guillain-Barré syndrome in French Polynesia offers the strongest evidence to date that the Zika virus can trigger temporary(...)

Lasting remission of HIV has been seen in a group of 14 French patients known as the Visconti cohort, who started treatment on antiretroviral drugs within 10 weeks of becoming infected, and stayed on the drugs for an average of three years. Photograph: Andrew Caballero-Reynolds/AFP/Getty Images

A French teenager born with HIV and treated until age six is still free from infection 12 years after stopping the treatments, suggesting the first ca(...)