File photo: A mother holds her one-month old daughter, who was born with microcephaly and was exposed to the Zika virus during her mother’s pregnancy, in Rio de Janeiro, Brazil. Photograph: Antonio Lacarda/EPA

After several weeks of study and debate, US health officials concluded that infection with the Zika virus during pregnancy causes the birth defect mi(...)

Marco Rubio and Donald Trump: Trump retweeted a photo posted last week by a supporter mocking the appearance of Rubio’s wife. Photograph: Chip Somodevilla

There’s an episode in the latest series of the Netflix political drama House of Cards where fictional president Frank Underwood attempts to manipulate(...)

A protester interrupts US Republican presidential candidate Donald Trump’s speech during a campaign rally at the downtown Midland Theater in Kansas City, Missouri, on Saturday. Photograph: Dave Kaup/Reuters

Police used pepper spray twice outside a Donald Trump rally in Missouri and made two arrests as violent protests continued to dog the Republican pres(...)

Democratic challenger Bernie Sanders scored a surprise win over frontrunner Hillary Clinton in Michigan while  Donald Trump made further advances in the race to be the Republican presidential nominee in November’s election with convincing primary ballot victories in Michigan and Mississippi last night. Photographs: Reuters, EPA

Democratic challenger Bernie Sanders scored a surprise win over frontrunner Hillary Clinton in Michigan, the biggest contest on the third day of multi(...)

Democratic US presidential candidate Hillary Clinton and rival Bernie Sanders speak  during the candidates’ debate in Flint, Michigan on Sunday. Photograph: Reuters/Jim Young

Bernie Sanders, the Vermont senator chasing Hillary Clinton for the Democratic nomination, faces a big test in Michigan today when the state votes in (...)

Republican presidential candidate Donald Trump: “We have to rebuild our country. Our country is going to hell . . . and Hillary Clinton doesn’t have a clue.” Photograph: Scott Audette/Reuters

“AAF!” says Jim Consolantis, an advertising executive from Miami Beach, at the back of Hillary Clinton’s victory party in downtown Miami. “Always Abou(...)

Houses in Pola de Allande

M y son Patrick and I are walking the Camino Primitivo – it’s the Camino, but not as you know it. It is early morning in May and we are in northern S(...)

Fumigating to prevent dengue, chikunguya and Zika virus at El Angel cemetery, in Lima, Peru. Photograph: Martin Mejia/AP Photo

Pregnant women are being advised to consider postponing travel to areas affected by Zika amid global concern at the spread of the mosquito-borne virus(...)

A man fumigating a house in Mexico City, Mexico as part of the country’s campaign against the Zika virus. Photograph: Mexican Secretary Office of Health/EPA

The US Centers for Disease Control and Prevention (CDC) extended its travel warning to another eight countries or territories that pose a risk of infe(...)

7-Eleven store clerk M Faroqui celebrates after learning the store sold the only winning Powerball ticket on Wednesday,  in Chino Hills, California. Photograph: Will Lester/The Sun via AP

At least three winning tickets were sold in Wednesday night’s record $1.568 billion (€1.46 billion) Powerball jackpot. California Lottery officials (...)