An Aedes aegypti mosquito is photographed in a laboratory at the University of El Salvador, in San Salvador. For the  first time the virus has been detected in the saliva and urine of two patients. Photograph: Marvin Recinos/AFP/Getty Images

Zika has been identified in the saliva and urine of two patients infected by the virus, a leading Brazilian health institute has said. It is the firs(...)

An Aedes aegypti mosquito, which carries Zika virus, photographed in a laboratory at the University of El Salvador in San Salvador. Brazilian health authorities confirmed on Thursday a case of transmission of Zika through a blood transfusion. Photograph: Marvin Recinos/AFP/Getty Images

A pregnant woman is among the seven people identified as being infected with the Zika virus in Spain after visiting affected countries. The country’s(...)

An Aedes aegypti mosquito, which carries the Zika virus,  photographed through a microscope at the Fiocruz institute in Recife, Pernambuco state, Brazil.  Photograph: Felipe Dana/AP

A case of Zika virus infection transmitted by sex, rather than mosquito bite, has been discovered in Texas. The Dallas County health and human service(...)

An Aedes aegypti mosquito  in a laboratory in Campinas, Brazil, February 2nd, 2016. Photograph: Paulo Whitaker/Reuters

A new method to render male mosquitoes infertile by nuclear radiation could help reduce populations of insects carrying the Zika virus linked to thous(...)

WHO chief Margaret Chan giving a press conference on Monday in Geneva after an emergency committee debate on whether the Zika virus outbreak should be considered a global health emergency. Photograph: AFP/Fabrice Coffrini

The World Health Organisation (WHO) says the Zika virus is “spreading explosively” and looks set to declare the outbreak a “public health emergency of(...)

A police officer stands in front of French taxis blockading a Parisian street during a protest against Uber this week. Photograph: EPA/CHRISTOPHE PETIT TESSON

Last Tuesday, France was gripped by huge strikes, with an estimated 130,000-150,000 protesting across the country. In that age-old French tradition, a(...)

Colombian women listen as a health worker distributes information on how to prevent the spread of the Zika virus, at the transport terminal in Bogota, Colombia:  latest figures from Colombia show 20,297 confirmed cases of the disease in the South American country. Photograph: John Vizcaino/Reuters

An emergency World Health Organisation (WHO) committee will meet on Monday to advise on the international response to the Zika virus, as the number o(...)

A warning from the World Health Organisation (WHO) that the Zika virus is “spreading explosively” has global implications. Although a mild illness for(...)

Threat: a health technician with Aedes aegyti mosquito larvae. Photograph: Juan Carlos Ulate/Reuters

What is Zika? Zika is a virus, ostensibly the least harmful of the diseases transmitted by the female Aedes aegypti, or yellow fever, mosquito. Onl(...)

Health workers fumigate in an attempt to eradicate the mosquito which transmits the Zika virus on Thursday in Recife, Pernambuco state, Brazil. Zika was first confirmed in Brazil – a country of 200 million – last May, and it spread like wildfire Photograph:  Mario Tama/Getty Images

The World Health Organisation has warned that the Zika virus is “spreading explosively” in the Americas and that as many as four million people could (...)