US president Barack Obama speaks as vice-president Joe Biden,  US Secretary of Health and Human Services Sylvia Burwell, National Institute of Allergy and Infectious Diseases director Anthony Fauci and members of the press listen after a meeting about the Zika virus in the Oval Office of the White House. Photograph: Brendan Smialowski/AFP/Getty Images

Doctors are monitoring 279 pregnant women with confirmed or suspected Zika virus infections in the US and its territories, federal health officials sa(...)

The two famous pieces of Cartier tiger jewellery are now being sold by soprano Sarah Brightman.

Two pieces of tiger jewellery by Cartier, which were formerly owned by the Duchess of Windsor, will go under the hammer at Christie’s in Geneva on Tue(...)

Officials pile dead chickens into bags in Hong Kong earlier this year in a mass cull after the deadly H7N9 virus was discovered in poultry imported from mainland China. Photograph: Philippe Lopez/AFP/Getty Images

US virologist Yoshihiro Kawaoka has form when it comes to sparking controversy. Last month, his team at the University of Wisconsin-Madison publish(...)

A young boy carries a tank to collect water  in Antananarivo in Madagascar. Malagasy officials announced last month that the city’s coffers were empty and there was no funding for rubbish collection. Refuse has been piling up, encouraging the growth of the rodent population. Photograph: Stephane de Sakutin/AFP/Getty Images

The director of Toliara jail in southwest Madagascar is wary of giving a wrong impression. “Sure we have rats, but lots of places do,” says Serge Idri(...)