The
number of people killed by the deadly Ebola virus in West Africa has
risen to 467, the World Health Organization (WHO) has said.
Sixty-eight of the deaths had been recorded since 23 June, the WHO said. The number of cases had risen from 635 on 23 June to 759, a 20% increase, the WHO added.
It is the largest outbreak - in terms of cases, deaths and geographical spread - to affect Guinea, Sierra Leone and Liberia.
Ebola, a haemorrhagic fever, has no cure and is spread by contact with the fluids of infected people or animals, such as urine, sweat and blood.
Most of the deaths have been centred in the southern Guekedou region of Guinea, where the outbreak was first reported in February.
The rise in infections will increase pressure on the health ministers of 11 West African countries when they meet in Ghana on Wednesday and Thursday to discuss the growing crisis, correspondents say.
The WHO has called for "drastic action" to tackle the outbreak.
"Containment of this outbreak requires a strong response in the countries and especially along their shared border areas," it said in a statemen