MILLIONS of sterile mosquitoes will be released from drones over parts of Brazil to combat the Zika virus, after successful field tests were hailed as a "breakthrough" by the United Nations...

[BOGOTA] Millions of sterile mosquitoes will be released from drones over parts of Brazil to combat the Zika virus, after successful field tests were hailed as a "breakthrough" by the...

[ CHICAGO] A Zika vaccine Sanofi SA dropped in September under political pressure over pricing produced strong responses in more than 90 per cent of those taking part in an early-stage clinical trial...