Carlos Morel on epidemics, breastfeeding battle, Trump v Big Pharma

Mayana Zatz’s work on twins shows a genetic component to the birth defect

Technique generates 3D images used for drugs to treat Zika and other diseases

Study shows disease was circulating in Brazil a year before cases were recognised

Oxford-grown insects pass toxic genes to their young

Plans include using one virus to attack another

Billion-dollar programme aims to cut vaccine-development time from 12 years to one

As evidence grows of a link between the virus and microcephaly, poorer communities are the most vulnerable

Centers for Disease Control chief Tom Frieden seeks Fema-like crisis resource

Singapore remains centre of Asia’s largest single outbreak

Number of confirmed cases reaches 115 as disease spreads to Malaysia

US, Australia and Taiwan advise pregnant women to avoid travel to city-state

Dengue and chikungunya have become entrenched in New Delhi’s ecosystem

Spate of cases raises questions over city-state’s vulnerability to infection

City-state confirms 41 cases in area around building site

Research is gathering pace as the mosquito-borne disease explodes across Latin America

Life goes on in US’s Zika ‘Ground Zero’

Irish golfer says health risk to him and his family is too high

Greg Rutherford’s decision reflects widespread concern among Rio athletes over potential health risk

One million Filipino school children to be given shots costing €20 apiece

The country’s first woman leader is facing the fight of her political life, writes Joe Leahy

Director Margaret Chan says pharma groups cannot continue to fund research